21764259

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1151}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 34504704

約数和(自身を除く): 12740445

約数列:

[1, 3, 9, 11, 33, 99, 191, 573, 1151, 1719, 2101, 3453, 6303, 10359, 12661, 18909, 37983, 113949, 219841, 659523, 1978569, 2418251, 7254753, 21764259]

約数ペア:

[(1, 21764259), (3, 7254753), (9, 2418251), (11, 1978569), (33, 659523), (99, 219841), (191, 113949), (573, 37983), (1151, 18909), (1719, 12661), (2101, 10359), (3453, 6303)]