21639372

素因数分解:

$2^2\times 3^1\times {\mathrm{409}}^1\times {\mathrm{4409}}^1$

素因数の和:4825

約数の個数: 24

約数和(自身を含む): 50626800

約数和(自身を除く): 28987428

約数列:

[1, 2, 3, 4, 6, 12, 409, 818, 1227, 1636, 2454, 4409, 4908, 8818, 13227, 17636, 26454, 52908, 1803281, 3606562, 5409843, 7213124, 10819686, 21639372]

約数ペア:

[(1, 21639372), (2, 10819686), (3, 7213124), (4, 5409843), (6, 3606562), (12, 1803281), (409, 52908), (818, 26454), (1227, 17636), (1636, 13227), (2454, 8818), (4409, 4908)]