19902045

素因数分解:

$3^1\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1277}}^1$

素因数の和:2324

約数の個数: 16

約数和(自身を含む): 31898880

約数和(自身を除く): 11996835

約数列:

[1, 3, 5, 15, 1039, 1277, 3117, 3831, 5195, 6385, 15585, 19155, 1326803, 3980409, 6634015, 19902045]

約数ペア:

[(1, 19902045), (3, 6634015), (5, 3980409), (15, 1326803), (1039, 19155), (1277, 15585), (3117, 6385), (3831, 5195)]