20181863529

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{32797}}^1$

素因数の和:32987

約数の個数: 40

約数和(自身を含む): 30859507008

約数和(自身を除く): 10677643479

約数列:

[1, 3, 9, 27, 71, 81, 107, 213, 321, 639, 963, 1917, 2889, 5751, 7597, 8667, 22791, 32797, 68373, 98391, 205119, 295173, 615357, 885519, 2328587, 2656557, 3509279, 6985761, 10527837, 20957283, 31583511, 62871849, 94750533, 188615547, 249158809, 284251599, 747476427, 2242429281, 6727287843, 20181863529]

約数ペア:

[(1, 20181863529), (3, 6727287843), (9, 2242429281), (27, 747476427), (71, 284251599), (81, 249158809), (107, 188615547), (213, 94750533), (321, 62871849), (639, 31583511), (963, 20957283), (1917, 10527837), (2889, 6985761), (5751, 3509279), (7597, 2656557), (8667, 2328587), (22791, 885519), (32797, 615357), (68373, 295173), (98391, 205119)]