21739360

素因数分解:

$2^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1637}}^1$

素因数の和:1735

約数の個数: 48

約数和(自身を含む): 52009776

約数和(自身を除く): 30270416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 83, 160, 166, 332, 415, 664, 830, 1328, 1637, 1660, 2656, 3274, 3320, 6548, 6640, 8185, 13096, 13280, 16370, 26192, 32740, 52384, 65480, 130960, 135871, 261920, 271742, 543484, 679355, 1086968, 1358710, 2173936, 2717420, 4347872, 5434840, 10869680, 21739360]

約数ペア:

[(1, 21739360), (2, 10869680), (4, 5434840), (5, 4347872), (8, 2717420), (10, 2173936), (16, 1358710), (20, 1086968), (32, 679355), (40, 543484), (80, 271742), (83, 261920), (160, 135871), (166, 130960), (332, 65480), (415, 52384), (664, 32740), (830, 26192), (1328, 16370), (1637, 13280), (1660, 13096), (2656, 8185), (3274, 6640), (3320, 6548)]