221738566

素因数分解:

$2^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{24709}}^1$

素因数の和:25359

約数の個数: 16

約数和(自身を含む): 380731680

約数和(自身を除く): 158993114

約数列:

[1, 2, 7, 14, 641, 1282, 4487, 8974, 24709, 49418, 172963, 345926, 15838469, 31676938, 110869283, 221738566]

約数ペア:

[(1, 221738566), (2, 110869283), (7, 31676938), (14, 15838469), (641, 345926), (1282, 172963), (4487, 49418), (8974, 24709)]