20354015

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1979}}^1$

素因数の和:2023

約数の個数: 24

約数和(自身を含む): 28440720

約数和(自身を除く): 8086705

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 1979, 2057, 9895, 10285, 21769, 33643, 108845, 168215, 239459, 370073, 1197295, 1850365, 4070803, 20354015]

約数ペア:

[(1, 20354015), (5, 4070803), (11, 1850365), (17, 1197295), (55, 370073), (85, 239459), (121, 168215), (187, 108845), (605, 33643), (935, 21769), (1979, 10285), (2057, 9895)]