21726159

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11369}}^1$

素因数の和:11399

約数の個数: 24

約数和(自身を含む): 36293040

約数和(自身を除く): 14566881

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11369, 34107, 79583, 147797, 238749, 443391, 557081, 1034579, 1671243, 3103737, 7242053, 21726159]

約数ペア:

[(1, 21726159), (3, 7242053), (7, 3103737), (13, 1671243), (21, 1034579), (39, 557081), (49, 443391), (91, 238749), (147, 147797), (273, 79583), (637, 34107), (1911, 11369)]