21572200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8297}}^1$

素因数の和:8326

約数の個数: 48

約数和(自身を含む): 54019980

約数和(自身を除く): 32447780

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, 8297, 16594, 33188, 41485, 66376, 82970, 107861, 165940, 207425, 215722, 331880, 414850, 431444, 539305, 829700, 862888, 1078610, 1659400, 2157220, 2696525, 4314440, 5393050, 10786100, 21572200]

約数ペア:

[(1, 21572200), (2, 10786100), (4, 5393050), (5, 4314440), (8, 2696525), (10, 2157220), (13, 1659400), (20, 1078610), (25, 862888), (26, 829700), (40, 539305), (50, 431444), (52, 414850), (65, 331880), (100, 215722), (104, 207425), (130, 165940), (200, 107861), (260, 82970), (325, 66376), (520, 41485), (650, 33188), (1300, 16594), (2600, 8297)]