28620501

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2557}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 48131328

約数和(自身を除く): 19510827

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 2557, 3731, 7671, 11193, 17899, 33241, 53697, 99723, 104837, 232687, 314511, 698061, 733859, 1362881, 2201577, 4088643, 9540167, 28620501]

約数ペア:

[(1, 28620501), (3, 9540167), (7, 4088643), (13, 2201577), (21, 1362881), (39, 733859), (41, 698061), (91, 314511), (123, 232687), (273, 104837), (287, 99723), (533, 53697), (861, 33241), (1599, 17899), (2557, 11193), (3731, 7671)]