21296600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8191}}^1$

素因数の和:8220

約数の個数: 48

約数和(自身を含む): 53329920

約数和(自身を除く): 32033320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8191, 16382, 32764, 40955, 65528, 81910, 106483, 163820, 204775, 212966, 327640, 409550, 425932, 532415, 819100, 851864, 1064830, 1638200, 2129660, 2662075, 4259320, 5324150, 10648300, 21296600]

約数ペア:

[(1, 21296600), (2, 10648300), (4, 5324150), (5, 4259320), (8, 2662075), (10, 2129660), (13, 1638200), (20, 1064830), (25, 851864), (26, 819100), (40, 532415), (50, 425932), (52, 409550), (65, 327640), (100, 212966), (104, 204775), (130, 163820), (200, 106483), (260, 81910), (325, 65528), (520, 40955), (650, 32764), (1300, 16382), (2600, 8191)]