20353437

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 34856640

約数和(自身を除く): 14503203

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 243, 351, 379, 459, 663, 1053, 1137, 1377, 1989, 3159, 3411, 4131, 4927, 5967, 6443, 10233, 14781, 17901, 19329, 30699, 44343, 53703, 57987, 83759, 92097, 133029, 173961, 251277, 399087, 521883, 753831, 1197261, 1565649, 2261493, 6784479, 20353437]

約数ペア:

[(1, 20353437), (3, 6784479), (9, 2261493), (13, 1565649), (17, 1197261), (27, 753831), (39, 521883), (51, 399087), (81, 251277), (117, 173961), (153, 133029), (221, 92097), (243, 83759), (351, 57987), (379, 53703), (459, 44343), (663, 30699), (1053, 19329), (1137, 17901), (1377, 14781), (1989, 10233), (3159, 6443), (3411, 5967), (4131, 4927)]