21666183

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13399}}^1$

素因数の和:13427

約数の個数: 24

約数和(自身を含む): 36662400

約数和(自身を除く): 14996217

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13399, 40197, 93793, 147389, 281379, 442167, 656551, 1031723, 1969653, 3095169, 7222061, 21666183]

約数ペア:

[(1, 21666183), (3, 7222061), (7, 3095169), (11, 1969653), (21, 1031723), (33, 656551), (49, 442167), (77, 281379), (147, 147389), (231, 93793), (539, 40197), (1617, 13399)]