21781258

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{3001}}^1$

素因数の和:3213

約数の個数: 16

約数和(自身を含む): 34583040

約数和(自身を除く): 12801782

約数列:

[1, 2, 19, 38, 191, 382, 3001, 3629, 6002, 7258, 57019, 114038, 573191, 1146382, 10890629, 21781258]

約数ペア:

[(1, 21781258), (2, 10890629), (19, 1146382), (38, 573191), (191, 114038), (382, 57019), (3001, 7258), (3629, 6002)]