21425091

素因数分解:

$3^1\times {\mathrm{47}}^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 30225744

約数和(自身を除く): 8800653

約数列:

[1, 3, 47, 53, 61, 141, 159, 183, 2209, 2491, 2867, 3233, 6627, 7473, 8601, 9699, 117077, 134749, 151951, 351231, 404247, 455853, 7141697, 21425091]

約数ペア:

[(1, 21425091), (3, 7141697), (47, 455853), (53, 404247), (61, 351231), (141, 151951), (159, 134749), (183, 117077), (2209, 9699), (2491, 8601), (2867, 7473), (3233, 6627)]