21980842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{4723}}^1$

素因数の和:4917

約数の個数: 16

約数和(自身を含む): 35713440

約数和(自身を除く): 13732598

約数列:

[1, 2, 13, 26, 179, 358, 2327, 4654, 4723, 9446, 61399, 122798, 845417, 1690834, 10990421, 21980842]

約数ペア:

[(1, 21980842), (2, 10990421), (13, 1690834), (26, 845417), (179, 122798), (358, 61399), (2327, 9446), (4654, 4723)]