20409027

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 30523392

約数和(自身を除く): 10114365

約数列:

[1, 3, 17, 23, 51, 69, 127, 137, 381, 391, 411, 1173, 2159, 2329, 2921, 3151, 6477, 6987, 8763, 9453, 17399, 49657, 52197, 53567, 148971, 160701, 295783, 400177, 887349, 1200531, 6803009, 20409027]

約数ペア:

[(1, 20409027), (3, 6803009), (17, 1200531), (23, 887349), (51, 400177), (69, 295783), (127, 160701), (137, 148971), (381, 53567), (391, 52197), (411, 49657), (1173, 17399), (2159, 9453), (2329, 8763), (2921, 6987), (3151, 6477)]