21802456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209639}}^1$

素因数の和:209658

約数の個数: 16

約数和(自身を含む): 44024400

約数和(自身を除く): 22221944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209639, 419278, 838556, 1677112, 2725307, 5450614, 10901228, 21802456]

約数ペア:

[(1, 21802456), (2, 10901228), (4, 5450614), (8, 2725307), (13, 1677112), (26, 838556), (52, 419278), (104, 209639)]