19905603

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{6709}}^1$

素因数の和:6778

約数の個数: 16

約数和(自身を含む): 28343040

約数和(自身を除く): 8437437

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 6709, 20127, 154307, 288487, 462921, 865461, 6635201, 19905603]

約数ペア:

[(1, 19905603), (3, 6635201), (23, 865461), (43, 462921), (69, 288487), (129, 154307), (989, 20127), (2967, 6709)]