21484260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 216

約数和(自身を含む): 80458560

約数和(自身を除く): 58974300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 59, 60, 63, 68, 70, 84, 85, 90, 102, 105, 118, 119, 126, 140, 153, 170, 177, 180, 204, 210, 236, 238, 252, 255, 289, 295, 306, 315, 340, 354, 357, 413, 420, 476, 510, 531, 578, 590, 595, 612, 630, 708, 714, 765, 826, 867, 885, 1003, 1020, 1062, 1071, 1156, 1180, 1190, 1239, 1260, 1428, 1445, 1530, 1652, 1734, 1770, 1785, 2006, 2023, 2065, 2124, 2142, 2380, 2478, 2601, 2655, 2890, 3009, 3060, 3468, 3540, 3570, 3717, 4012, 4046, 4130, 4284, 4335, 4956, 5015, 5202, 5310, 5355, 5780, 6018, 6069, 6195, 7021, 7140, 7434, 8092, 8260, 8670, 9027, 10030, 10115, 10404, 10620, 10710, 12036, 12138, 12390, 13005, 14042, 14868, 15045, 17051, 17340, 18054, 18207, 18585, 20060, 20230, 21063, 21420, 24276, 24780, 26010, 28084, 30090, 30345, 34102, 35105, 36108, 36414, 37170, 40460, 42126, 45135, 51153, 52020, 60180, 60690, 63189, 68204, 70210, 72828, 74340, 84252, 85255, 90270, 91035, 102306, 105315, 119357, 121380, 126378, 140420, 153459, 170510, 180540, 182070, 204612, 210630, 238714, 252756, 255765, 306918, 315945, 341020, 358071, 364140, 421260, 477428, 511530, 596785, 613836, 631890, 716142, 767295, 1023060, 1074213, 1193570, 1263780, 1432284, 1534590, 1790355, 2148426, 2387140, 3069180, 3580710, 4296852, 5371065, 7161420, 10742130, 21484260]

約数ペア:

[(1, 21484260), (2, 10742130), (3, 7161420), (4, 5371065), (5, 4296852), (6, 3580710), (7, 3069180), (9, 2387140), (10, 2148426), (12, 1790355), (14, 1534590), (15, 1432284), (17, 1263780), (18, 1193570), (20, 1074213), (21, 1023060), (28, 767295), (30, 716142), (34, 631890), (35, 613836), (36, 596785), (42, 511530), (45, 477428), (51, 421260), (59, 364140), (60, 358071), (63, 341020), (68, 315945), (70, 306918), (84, 255765), (85, 252756), (90, 238714), (102, 210630), (105, 204612), (118, 182070), (119, 180540), (126, 170510), (140, 153459), (153, 140420), (170, 126378), (177, 121380), (180, 119357), (204, 105315), (210, 102306), (236, 91035), (238, 90270), (252, 85255), (255, 84252), (289, 74340), (295, 72828), (306, 70210), (315, 68204), (340, 63189), (354, 60690), (357, 60180), (413, 52020), (420, 51153), (476, 45135), (510, 42126), (531, 40460), (578, 37170), (590, 36414), (595, 36108), (612, 35105), (630, 34102), (708, 30345), (714, 30090), (765, 28084), (826, 26010), (867, 24780), (885, 24276), (1003, 21420), (1020, 21063), (1062, 20230), (1071, 20060), (1156, 18585), (1180, 18207), (1190, 18054), (1239, 17340), (1260, 17051), (1428, 15045), (1445, 14868), (1530, 14042), (1652, 13005), (1734, 12390), (1770, 12138), (1785, 12036), (2006, 10710), (2023, 10620), (2065, 10404), (2124, 10115), (2142, 10030), (2380, 9027), (2478, 8670), (2601, 8260), (2655, 8092), (2890, 7434), (3009, 7140), (3060, 7021), (3468, 6195), (3540, 6069), (3570, 6018), (3717, 5780), (4012, 5355), (4046, 5310), (4130, 5202), (4284, 5015), (4335, 4956)]