20518473

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7591}}^1$

素因数の和:7664

約数の個数: 16

約数和(自身を含む): 29517696

約数和(自身を除く): 8999223

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7591, 22773, 129047, 387141, 402323, 1206969, 6839491, 20518473]

約数ペア:

[(1, 20518473), (3, 6839491), (17, 1206969), (51, 402323), (53, 387141), (159, 129047), (901, 22773), (2703, 7591)]