19898566

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{773}}^1$

素因数の和:1047

約数の個数: 16

約数和(自身を含む): 30520368

約数和(自身を除く): 10621802

約数列:

[1, 2, 61, 122, 211, 422, 773, 1546, 12871, 25742, 47153, 94306, 163103, 326206, 9949283, 19898566]

約数ペア:

[(1, 19898566), (2, 9949283), (61, 326206), (122, 163103), (211, 94306), (422, 47153), (773, 25742), (1546, 12871)]