21372

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 54096

約数和(自身を除く): 32724

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 137, 156, 274, 411, 548, 822, 1644, 1781, 3562, 5343, 7124, 10686, 21372]

約数ペア:

[(1, 21372), (2, 10686), (3, 7124), (4, 5343), (6, 3562), (12, 1781), (13, 1644), (26, 822), (39, 548), (52, 411), (78, 274), (137, 156)]