81581577

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1973}}^1$

素因数の和:2173

約数の個数: 32

約数和(自身を含む): 136442880

約数和(自身を除く): 54861303

約数列:

[1, 3, 7, 11, 21, 33, 77, 179, 231, 537, 1253, 1969, 1973, 3759, 5907, 5919, 13783, 13811, 21703, 41349, 41433, 65109, 151921, 353167, 455763, 1059501, 2472169, 3884837, 7416507, 11654511, 27193859, 81581577]

約数ペア:

[(1, 81581577), (3, 27193859), (7, 11654511), (11, 7416507), (21, 3884837), (33, 2472169), (77, 1059501), (179, 455763), (231, 353167), (537, 151921), (1253, 65109), (1969, 41433), (1973, 41349), (3759, 21703), (5907, 13811), (5919, 13783)]