21268312

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15731}}^1$

素因数の和:15763

約数の個数: 24

約数和(自身を含む): 43184340

約数和(自身を除く): 21916028

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15731, 31462, 62924, 125848, 204503, 409006, 818012, 1636024, 2658539, 5317078, 10634156, 21268312]

約数ペア:

[(1, 21268312), (2, 10634156), (4, 5317078), (8, 2658539), (13, 1636024), (26, 818012), (52, 409006), (104, 204503), (169, 125848), (338, 62924), (676, 31462), (1352, 15731)]