21467992

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{797}}^1$

素因数の和:860

約数の個数: 64

約数和(自身を含む): 50944320

約数和(自身を除く): 29476328

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 37, 52, 56, 74, 91, 104, 148, 182, 259, 296, 364, 481, 518, 728, 797, 962, 1036, 1594, 1924, 2072, 3188, 3367, 3848, 5579, 6376, 6734, 10361, 11158, 13468, 20722, 22316, 26936, 29489, 41444, 44632, 58978, 72527, 82888, 117956, 145054, 206423, 235912, 290108, 383357, 412846, 580216, 766714, 825692, 1533428, 1651384, 2683499, 3066856, 5366998, 10733996, 21467992]

約数ペア:

[(1, 21467992), (2, 10733996), (4, 5366998), (7, 3066856), (8, 2683499), (13, 1651384), (14, 1533428), (26, 825692), (28, 766714), (37, 580216), (52, 412846), (56, 383357), (74, 290108), (91, 235912), (104, 206423), (148, 145054), (182, 117956), (259, 82888), (296, 72527), (364, 58978), (481, 44632), (518, 41444), (728, 29489), (797, 26936), (962, 22316), (1036, 20722), (1594, 13468), (1924, 11158), (2072, 10361), (3188, 6734), (3367, 6376), (3848, 5579)]