18972045

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2437}}^1$

素因数の和:2621

約数の個数: 24

約数和(自身を含む): 33088536

約数和(自身を除く): 14116491

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2437, 2595, 7311, 7785, 12185, 21933, 36555, 109665, 421601, 1264803, 2108005, 3794409, 6324015, 18972045]

約数ペア:

[(1, 18972045), (3, 6324015), (5, 3794409), (9, 2108005), (15, 1264803), (45, 421601), (173, 109665), (519, 36555), (865, 21933), (1557, 12185), (2437, 7785), (2595, 7311)]