21284340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:318

約数の個数: 192

約数和(自身を含む): 78962688

約数和(自身を除く): 57678348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 17, 20, 21, 22, 28, 30, 33, 34, 35, 42, 44, 51, 55, 60, 66, 68, 70, 77, 84, 85, 102, 105, 110, 119, 132, 140, 154, 165, 170, 187, 204, 210, 220, 231, 238, 255, 271, 308, 330, 340, 357, 374, 385, 420, 462, 476, 510, 542, 561, 595, 660, 714, 748, 770, 813, 924, 935, 1020, 1084, 1122, 1155, 1190, 1309, 1355, 1428, 1540, 1626, 1785, 1870, 1897, 2244, 2310, 2380, 2618, 2710, 2805, 2981, 3252, 3570, 3740, 3794, 3927, 4065, 4607, 4620, 5236, 5420, 5610, 5691, 5962, 6545, 7140, 7588, 7854, 8130, 8943, 9214, 9485, 11220, 11382, 11924, 13090, 13821, 14905, 15708, 16260, 17886, 18428, 18970, 19635, 20867, 22764, 23035, 26180, 27642, 28455, 29810, 32249, 35772, 37940, 39270, 41734, 44715, 46070, 50677, 55284, 56910, 59620, 62601, 64498, 69105, 78540, 83468, 89430, 92140, 96747, 101354, 104335, 113820, 125202, 128996, 138210, 152031, 161245, 178860, 193494, 202708, 208670, 250404, 253385, 276420, 304062, 313005, 322490, 354739, 386988, 417340, 483735, 506770, 608124, 626010, 644980, 709478, 760155, 967470, 1013540, 1064217, 1252020, 1418956, 1520310, 1773695, 1934940, 2128434, 3040620, 3547390, 4256868, 5321085, 7094780, 10642170, 21284340]

約数ペア:

[(1, 21284340), (2, 10642170), (3, 7094780), (4, 5321085), (5, 4256868), (6, 3547390), (7, 3040620), (10, 2128434), (11, 1934940), (12, 1773695), (14, 1520310), (15, 1418956), (17, 1252020), (20, 1064217), (21, 1013540), (22, 967470), (28, 760155), (30, 709478), (33, 644980), (34, 626010), (35, 608124), (42, 506770), (44, 483735), (51, 417340), (55, 386988), (60, 354739), (66, 322490), (68, 313005), (70, 304062), (77, 276420), (84, 253385), (85, 250404), (102, 208670), (105, 202708), (110, 193494), (119, 178860), (132, 161245), (140, 152031), (154, 138210), (165, 128996), (170, 125202), (187, 113820), (204, 104335), (210, 101354), (220, 96747), (231, 92140), (238, 89430), (255, 83468), (271, 78540), (308, 69105), (330, 64498), (340, 62601), (357, 59620), (374, 56910), (385, 55284), (420, 50677), (462, 46070), (476, 44715), (510, 41734), (542, 39270), (561, 37940), (595, 35772), (660, 32249), (714, 29810), (748, 28455), (770, 27642), (813, 26180), (924, 23035), (935, 22764), (1020, 20867), (1084, 19635), (1122, 18970), (1155, 18428), (1190, 17886), (1309, 16260), (1355, 15708), (1428, 14905), (1540, 13821), (1626, 13090), (1785, 11924), (1870, 11382), (1897, 11220), (2244, 9485), (2310, 9214), (2380, 8943), (2618, 8130), (2710, 7854), (2805, 7588), (2981, 7140), (3252, 6545), (3570, 5962), (3740, 5691), (3794, 5610), (3927, 5420), (4065, 5236), (4607, 4620)]