19916866

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{2767}}^1$

素因数の和:2889

約数の個数: 16

約数和(自身を含む): 30890880

約数和(自身を除く): 10974014

約数列:

[1, 2, 59, 61, 118, 122, 2767, 3599, 5534, 7198, 163253, 168787, 326506, 337574, 9958433, 19916866]

約数ペア:

[(1, 19916866), (2, 9958433), (59, 337574), (61, 326506), (118, 168787), (122, 163253), (2767, 7198), (3599, 5534)]