661644874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{110977}}^1$

素因数の和:111261

約数の個数: 16

約数和(自身を含む): 1086696576

約数和(自身を除く): 425051702

約数列:

[1, 2, 11, 22, 271, 542, 2981, 5962, 110977, 221954, 1220747, 2441494, 30074767, 60149534, 330822437, 661644874]

約数ペア:

[(1, 661644874), (2, 330822437), (11, 60149534), (22, 30074767), (271, 2441494), (542, 1220747), (2981, 221954), (5962, 110977)]