21987050

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{8297}}^1$

素因数の和:8362

約数の個数: 24

約数和(自身を含む): 41672556

約数和(自身を除く): 19685506

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 8297, 16594, 41485, 82970, 207425, 414850, 439741, 879482, 2198705, 4397410, 10993525, 21987050]

約数ペア:

[(1, 21987050), (2, 10993525), (5, 4397410), (10, 2198705), (25, 879482), (50, 439741), (53, 414850), (106, 207425), (265, 82970), (530, 41485), (1325, 16594), (2650, 8297)]