20878662007

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{119993}}^1$

素因数の和:120127

約数の個数: 24

約数和(自身を含む): 25115224176

約数和(自身を除く): 4236562169

約数列:

[1, 7, 49, 53, 67, 371, 469, 2597, 3283, 3551, 24857, 119993, 173999, 839951, 5879657, 6359629, 8039531, 44517403, 56276717, 311621821, 393937019, 426095143, 2982666001, 20878662007]

約数ペア:

[(1, 20878662007), (7, 2982666001), (49, 426095143), (53, 393937019), (67, 311621821), (371, 56276717), (469, 44517403), (2597, 8039531), (3283, 6359629), (3551, 5879657), (24857, 839951), (119993, 173999)]