21596836

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{409}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 38894240

約数和(自身を除く): 17297404

約数列:

[1, 2, 4, 43, 86, 172, 307, 409, 614, 818, 1228, 1636, 13201, 17587, 26402, 35174, 52804, 70348, 125563, 251126, 502252, 5399209, 10798418, 21596836]

約数ペア:

[(1, 21596836), (2, 10798418), (4, 5399209), (43, 502252), (86, 251126), (172, 125563), (307, 70348), (409, 52804), (614, 35174), (818, 26402), (1228, 17587), (1636, 13201)]