18970634

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{1187}}^1$

素因数の和:1381

約数の個数: 16

約数和(自身を含む): 29167776

約数和(自身を除く): 10197142

約数列:

[1, 2, 61, 122, 131, 262, 1187, 2374, 7991, 15982, 72407, 144814, 155497, 310994, 9485317, 18970634]

約数ペア:

[(1, 18970634), (2, 9485317), (61, 310994), (122, 155497), (131, 144814), (262, 72407), (1187, 15982), (2374, 7991)]