18686818

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{1171}}^1$

素因数の和:1353

約数の個数: 16

約数和(自身を含む): 28690560

約数和(自身を除く): 10003742

約数列:

[1, 2, 79, 101, 158, 202, 1171, 2342, 7979, 15958, 92509, 118271, 185018, 236542, 9343409, 18686818]

約数ペア:

[(1, 18686818), (2, 9343409), (79, 236542), (101, 185018), (158, 118271), (202, 92509), (1171, 15958), (2342, 7979)]