21820110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55949}}^1$

素因数の和:55972

約数の個数: 32

約数和(自身を含む): 56397600

約数和(自身を除く): 34577490

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55949, 111898, 167847, 279745, 335694, 559490, 727337, 839235, 1454674, 1678470, 2182011, 3636685, 4364022, 7273370, 10910055, 21820110]

約数ペア:

[(1, 21820110), (2, 10910055), (3, 7273370), (5, 4364022), (6, 3636685), (10, 2182011), (13, 1678470), (15, 1454674), (26, 839235), (30, 727337), (39, 559490), (65, 335694), (78, 279745), (130, 167847), (195, 111898), (390, 55949)]