21257635

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26407}}^1$

素因数の和:26442

約数の個数: 16

約数和(自身を含む): 30422016

約数和(自身を除く): 9164381

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 26407, 132035, 184849, 607361, 924245, 3036805, 4251527, 21257635]

約数ペア:

[(1, 21257635), (5, 4251527), (7, 3036805), (23, 924245), (35, 607361), (115, 184849), (161, 132035), (805, 26407)]