20655531

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3331}}^1$

素因数の和:3403

約数の個数: 24

約数和(自身を含む): 32746896

約数和(自身を除く): 12091365

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3331, 6201, 9993, 29979, 43303, 129909, 176543, 389727, 529629, 1588887, 2295059, 6885177, 20655531]

約数ペア:

[(1, 20655531), (3, 6885177), (9, 2295059), (13, 1588887), (39, 529629), (53, 389727), (117, 176543), (159, 129909), (477, 43303), (689, 29979), (2067, 9993), (3331, 6201)]