21441825

素因数分解:

$3^2\times 5^2\times {\mathrm{233}}^1\times {\mathrm{409}}^1$

素因数の和:658

約数の個数: 36

約数和(自身を含む): 38663820

約数和(自身を除く): 17221995

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 233, 409, 699, 1165, 1227, 2045, 2097, 3495, 3681, 5825, 6135, 10225, 10485, 17475, 18405, 30675, 52425, 92025, 95297, 285891, 476485, 857673, 1429455, 2382425, 4288365, 7147275, 21441825]

約数ペア:

[(1, 21441825), (3, 7147275), (5, 4288365), (9, 2382425), (15, 1429455), (25, 857673), (45, 476485), (75, 285891), (225, 95297), (233, 92025), (409, 52425), (699, 30675), (1165, 18405), (1227, 17475), (2045, 10485), (2097, 10225), (3495, 6135), (3681, 5825)]