18869305

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{367}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 28191744

約数和(自身を除く): 9322439

約数列:

[1, 5, 7, 13, 35, 65, 91, 113, 367, 455, 565, 791, 1469, 1835, 2569, 3955, 4771, 7345, 10283, 12845, 23855, 33397, 41471, 51415, 166985, 207355, 290297, 539123, 1451485, 2695615, 3773861, 18869305]

約数ペア:

[(1, 18869305), (5, 3773861), (7, 2695615), (13, 1451485), (35, 539123), (65, 290297), (91, 207355), (113, 166985), (367, 51415), (455, 41471), (565, 33397), (791, 23855), (1469, 12845), (1835, 10283), (2569, 7345), (3955, 4771)]