21590560

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5867}}^1$

素因数の和:5905

約数の個数: 48

約数和(自身を含む): 53234496

約数和(自身を除く): 31643936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5867, 11734, 23468, 29335, 46936, 58670, 93872, 117340, 134941, 187744, 234680, 269882, 469360, 539764, 674705, 938720, 1079528, 1349410, 2159056, 2698820, 4318112, 5397640, 10795280, 21590560]

約数ペア:

[(1, 21590560), (2, 10795280), (4, 5397640), (5, 4318112), (8, 2698820), (10, 2159056), (16, 1349410), (20, 1079528), (23, 938720), (32, 674705), (40, 539764), (46, 469360), (80, 269882), (92, 234680), (115, 187744), (160, 134941), (184, 117340), (230, 93872), (368, 58670), (460, 46936), (736, 29335), (920, 23468), (1840, 11734), (3680, 5867)]