19971022

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8273}}^1$

素因数の和:8363

約数の個数: 16

約数和(自身を含む): 32169312

約数和(自身を除く): 12198290

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8273, 16546, 140641, 281282, 587383, 1174766, 9985511, 19971022]

約数ペア:

[(1, 19971022), (2, 9985511), (17, 1174766), (34, 587383), (71, 281282), (142, 140641), (1207, 16546), (2414, 8273)]