21039227

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{607}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 3125125

約数列:

[1, 11, 23, 137, 253, 607, 1507, 3151, 6677, 13961, 34661, 83159, 153571, 914749, 1912657, 21039227]

約数ペア:

[(1, 21039227), (11, 1912657), (23, 914749), (137, 153571), (253, 83159), (607, 34661), (1507, 13961), (3151, 6677)]