21591609

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1151}}^1$

素因数の和:1217

約数の個数: 24

約数和(自身を含む): 32044032

約数和(自身を除く): 10452423

約数列:

[1, 3, 13, 37, 39, 111, 169, 481, 507, 1151, 1443, 3453, 6253, 14963, 18759, 42587, 44889, 127761, 194519, 553631, 583557, 1660893, 7197203, 21591609]

約数ペア:

[(1, 21591609), (3, 7197203), (13, 1660893), (37, 583557), (39, 553631), (111, 194519), (169, 127761), (481, 44889), (507, 42587), (1151, 18759), (1443, 14963), (3453, 6253)]