81831764

素因数分解:

$2^2\times 7^2\times {\mathrm{417509}}^1$

素因数の和:417527

約数の個数: 18

約数和(自身を含む): 166586490

約数和(自身を除く): 84754726

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 417509, 835018, 1670036, 2922563, 5845126, 11690252, 20457941, 40915882, 81831764]

約数ペア:

[(1, 81831764), (2, 40915882), (4, 20457941), (7, 11690252), (14, 5845126), (28, 2922563), (49, 1670036), (98, 835018), (196, 417509)]