21388895885

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26570057}}^1$

素因数の和:26570092

約数の個数: 16

約数和(自身を含む): 30608706816

約数和(自身を除く): 9219810931

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 26570057, 132850285, 185990399, 611111311, 929951995, 3055556555, 4277779177, 21388895885]

約数ペア:

[(1, 21388895885), (5, 4277779177), (7, 3055556555), (23, 929951995), (35, 611111311), (115, 185990399), (161, 132850285), (805, 26570057)]