21681222

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{212561}}^1$

素因数の和:212583

約数の個数: 16

約数和(自身を含む): 45913392

約数和(自身を除く): 24232170

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 212561, 425122, 637683, 1275366, 3613537, 7227074, 10840611, 21681222]

約数ペア:

[(1, 21681222), (2, 10840611), (3, 7227074), (6, 3613537), (17, 1275366), (34, 637683), (51, 425122), (102, 212561)]