19905782

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{24697}}^1$

素因数の和:24743

約数の個数: 16

約数和(自身を含む): 33194112

約数和(自身を除く): 13288330

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 24697, 49394, 321061, 642122, 765607, 1531214, 9952891, 19905782]

約数ペア:

[(1, 19905782), (2, 9952891), (13, 1531214), (26, 765607), (31, 642122), (62, 321061), (403, 49394), (806, 24697)]