20921334713

素因数分解:

${\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1\times {\mathrm{2137}}^1$

素因数の和:2912

約数の個数: 16

約数和(自身を含む): 21273544704

約数和(自身を除く): 352209991

約数列:

[1, 127, 157, 491, 2137, 19939, 62357, 77087, 271399, 335509, 1049267, 9790049, 42609643, 133256909, 164734919, 20921334713]

約数ペア:

[(1, 20921334713), (127, 164734919), (157, 133256909), (491, 42609643), (2137, 9790049), (19939, 1049267), (62357, 335509), (77087, 271399)]