20722629

素因数分解:

$3^1\times {\mathrm{47}}^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 29250720

約数和(自身を除く): 8528091

約数列:

[1, 3, 47, 53, 59, 141, 159, 177, 2209, 2491, 2773, 3127, 6627, 7473, 8319, 9381, 117077, 130331, 146969, 351231, 390993, 440907, 6907543, 20722629]

約数ペア:

[(1, 20722629), (3, 6907543), (47, 440907), (53, 390993), (59, 351231), (141, 146969), (159, 130331), (177, 117077), (2209, 9381), (2491, 8319), (2773, 7473), (3127, 6627)]