21454170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 38265510

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 31, 34, 46, 51, 59, 62, 69, 85, 93, 102, 115, 118, 138, 155, 170, 177, 186, 230, 255, 295, 310, 345, 354, 391, 465, 510, 527, 590, 690, 713, 782, 885, 930, 1003, 1054, 1173, 1357, 1426, 1581, 1770, 1829, 1955, 2006, 2139, 2346, 2635, 2714, 3009, 3162, 3565, 3658, 3910, 4071, 4278, 5015, 5270, 5487, 5865, 6018, 6785, 7130, 7905, 8142, 9145, 10030, 10695, 10974, 11730, 12121, 13570, 15045, 15810, 18290, 20355, 21390, 23069, 24242, 27435, 30090, 31093, 36363, 40710, 42067, 46138, 54870, 60605, 62186, 69207, 72726, 84134, 93279, 115345, 121210, 126201, 138414, 155465, 181815, 186558, 210335, 230690, 252402, 310930, 346035, 363630, 420670, 466395, 631005, 692070, 715139, 932790, 1262010, 1430278, 2145417, 3575695, 4290834, 7151390, 10727085, 21454170]

約数ペア:

[(1, 21454170), (2, 10727085), (3, 7151390), (5, 4290834), (6, 3575695), (10, 2145417), (15, 1430278), (17, 1262010), (23, 932790), (30, 715139), (31, 692070), (34, 631005), (46, 466395), (51, 420670), (59, 363630), (62, 346035), (69, 310930), (85, 252402), (93, 230690), (102, 210335), (115, 186558), (118, 181815), (138, 155465), (155, 138414), (170, 126201), (177, 121210), (186, 115345), (230, 93279), (255, 84134), (295, 72726), (310, 69207), (345, 62186), (354, 60605), (391, 54870), (465, 46138), (510, 42067), (527, 40710), (590, 36363), (690, 31093), (713, 30090), (782, 27435), (885, 24242), (930, 23069), (1003, 21390), (1054, 20355), (1173, 18290), (1357, 15810), (1426, 15045), (1581, 13570), (1770, 12121), (1829, 11730), (1955, 10974), (2006, 10695), (2139, 10030), (2346, 9145), (2635, 8142), (2714, 7905), (3009, 7130), (3162, 6785), (3565, 6018), (3658, 5865), (3910, 5487), (4071, 5270), (4278, 5015)]