20898135

素因数分解:

$3^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{547}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 37351680

約数和(自身を除く): 16453545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 283, 547, 849, 1415, 1641, 2547, 2735, 4245, 4923, 7641, 8205, 12735, 14769, 24615, 38205, 73845, 154801, 464403, 774005, 1393209, 2322015, 4179627, 6966045, 20898135]

約数ペア:

[(1, 20898135), (3, 6966045), (5, 4179627), (9, 2322015), (15, 1393209), (27, 774005), (45, 464403), (135, 154801), (283, 73845), (547, 38205), (849, 24615), (1415, 14769), (1641, 12735), (2547, 8205), (2735, 7641), (4245, 4923)]