20178135

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12119}}^1$

素因数の和:12167

約数の個数: 24

約数和(自身を含む): 35923680

約数和(自身を除く): 15745545

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12119, 36357, 60595, 109071, 181785, 448403, 545355, 1345209, 2242015, 4035627, 6726045, 20178135]

約数ペア:

[(1, 20178135), (3, 6726045), (5, 4035627), (9, 2242015), (15, 1345209), (37, 545355), (45, 448403), (111, 181785), (185, 109071), (333, 60595), (555, 36357), (1665, 12119)]