20307917

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1409}}^1$

素因数の和:1516

約数の個数: 16

約数和(自身を含む): 24364800

約数和(自身を除く): 4056883

約数列:

[1, 7, 29, 71, 203, 497, 1409, 2059, 9863, 14413, 40861, 100039, 286027, 700273, 2901131, 20307917]

約数ペア:

[(1, 20307917), (7, 2901131), (29, 700273), (71, 286027), (203, 100039), (497, 40861), (1409, 14413), (2059, 9863)]