81996398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{128521}}^1$

素因数の和:128563

約数の個数: 16

約数和(自身を含む): 138803760

約数和(自身を除く): 56807362

約数列:

[1, 2, 11, 22, 29, 58, 319, 638, 128521, 257042, 1413731, 2827462, 3727109, 7454218, 40998199, 81996398]

約数ペア:

[(1, 81996398), (2, 40998199), (11, 7454218), (22, 3727109), (29, 2827462), (58, 1413731), (319, 257042), (638, 128521)]