21104752

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77591}}^1$

素因数の和:77616

約数の個数: 20

約数和(自身を含む): 43296336

約数和(自身を除く): 22191584

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77591, 155182, 310364, 620728, 1241456, 1319047, 2638094, 5276188, 10552376, 21104752]

約数ペア:

[(1, 21104752), (2, 10552376), (4, 5276188), (8, 2638094), (16, 1319047), (17, 1241456), (34, 620728), (68, 310364), (136, 155182), (272, 77591)]