21283587

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60637}}^1$

素因数の和:60659

約数の個数: 16

約数和(自身を含む): 33957280

約数和(自身を除く): 12673693

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60637, 181911, 545733, 788281, 1637199, 2364843, 7094529, 21283587]

約数ペア:

[(1, 21283587), (3, 7094529), (9, 2364843), (13, 1637199), (27, 788281), (39, 545733), (117, 181911), (351, 60637)]