20556615

素因数分解:

$3^1\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1319}}^1$

素因数の和:2366

約数の個数: 16

約数和(自身を含む): 32947200

約数和(自身を除く): 12390585

約数列:

[1, 3, 5, 15, 1039, 1319, 3117, 3957, 5195, 6595, 15585, 19785, 1370441, 4111323, 6852205, 20556615]

約数ペア:

[(1, 20556615), (3, 6852205), (5, 4111323), (15, 1370441), (1039, 19785), (1319, 15585), (3117, 6595), (3957, 5195)]