20345938

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{1103}}^1$

素因数の和:1529

約数の個数: 16

約数和(自身を含む): 31954176

約数和(自身を除く): 11608238

約数列:

[1, 2, 23, 46, 401, 802, 1103, 2206, 9223, 18446, 25369, 50738, 442303, 884606, 10172969, 20345938]

約数ペア:

[(1, 20345938), (2, 10172969), (23, 884606), (46, 442303), (401, 50738), (802, 25369), (1103, 18446), (2206, 9223)]