19790757

素因数分解:

$3^3\times 7^3\times {\mathrm{2137}}^1$

素因数の和:2167

約数の個数: 32

約数和(自身を含む): 34208000

約数和(自身を除く): 14417243

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 2137, 3087, 6411, 9261, 14959, 19233, 44877, 57699, 104713, 134631, 314139, 403893, 732991, 942417, 2198973, 2827251, 6596919, 19790757]

約数ペア:

[(1, 19790757), (3, 6596919), (7, 2827251), (9, 2198973), (21, 942417), (27, 732991), (49, 403893), (63, 314139), (147, 134631), (189, 104713), (343, 57699), (441, 44877), (1029, 19233), (1323, 14959), (2137, 9261), (3087, 6411)]