20416257

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 30209088

約数和(自身を除く): 9792831

約数列:

[1, 3, 9, 83, 151, 181, 249, 453, 543, 747, 1359, 1629, 12533, 15023, 27331, 37599, 45069, 81993, 112797, 135207, 245979, 2268473, 6805419, 20416257]

約数ペア:

[(1, 20416257), (3, 6805419), (9, 2268473), (83, 245979), (151, 135207), (181, 112797), (249, 81993), (453, 45069), (543, 37599), (747, 27331), (1359, 15023), (1629, 12533)]