21322215

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3617}}^1$

素因数の和:3759

約数の個数: 24

約数和(自身を含む): 37250928

約数和(自身を除く): 15928713

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3617, 5895, 10851, 18085, 32553, 54255, 162765, 473827, 1421481, 2369135, 4264443, 7107405, 21322215]

約数ペア:

[(1, 21322215), (3, 7107405), (5, 4264443), (9, 2369135), (15, 1421481), (45, 473827), (131, 162765), (393, 54255), (655, 32553), (1179, 18085), (1965, 10851), (3617, 5895)]