19788735

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9491}}^1$

素因数の和:9638

約数の個数: 16

約数和(自身を含む): 31893120

約数和(自身を除く): 12104385

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9491, 28473, 47455, 142365, 1319249, 3957747, 6596245, 19788735]

約数ペア:

[(1, 19788735), (3, 6596245), (5, 3957747), (15, 1319249), (139, 142365), (417, 47455), (695, 28473), (2085, 9491)]