20975149

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:165

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 4426451

約数列:

[1, 13, 23, 29, 41, 59, 299, 377, 533, 667, 767, 943, 1189, 1357, 1711, 2419, 8671, 12259, 15457, 17641, 22243, 27347, 31447, 39353, 55637, 70151, 355511, 511589, 723281, 911963, 1613473, 20975149]

約数ペア:

[(1, 20975149), (13, 1613473), (23, 911963), (29, 723281), (41, 511589), (59, 355511), (299, 70151), (377, 55637), (533, 39353), (667, 31447), (767, 27347), (943, 22243), (1189, 17641), (1357, 15457), (1711, 12259), (2419, 8671)]