21484749

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 34247808

約数和(自身を除く): 12763059

約数列:

[1, 3, 11, 13, 33, 39, 61, 143, 183, 429, 671, 793, 821, 2013, 2379, 2463, 8723, 9031, 10673, 26169, 27093, 32019, 50081, 117403, 150243, 352209, 550891, 651053, 1652673, 1953159, 7161583, 21484749]

約数ペア:

[(1, 21484749), (3, 7161583), (11, 1953159), (13, 1652673), (33, 651053), (39, 550891), (61, 352209), (143, 150243), (183, 117403), (429, 50081), (671, 32019), (793, 27093), (821, 26169), (2013, 10673), (2379, 9031), (2463, 8723)]