20656263

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 28028000

約数和(自身を除く): 7371737

約数列:

[1, 3, 109, 181, 327, 349, 543, 1047, 19729, 38041, 59187, 63169, 114123, 189507, 6885421, 20656263]

約数ペア:

[(1, 20656263), (3, 6885421), (109, 189507), (181, 114123), (327, 63169), (349, 59187), (543, 38041), (1047, 19729)]