21406918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{1447}}^1$

素因数の和:2031

約数の個数: 16

約数和(自身を含む): 34665120

約数和(自身を除く): 13258202

約数列:

[1, 2, 13, 26, 569, 1138, 1447, 2894, 7397, 14794, 18811, 37622, 823343, 1646686, 10703459, 21406918]

約数ペア:

[(1, 21406918), (2, 10703459), (13, 1646686), (26, 823343), (569, 37622), (1138, 18811), (1447, 14794), (2894, 7397)]