19718038

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{2221}}^1$

素因数の和:2439

約数の個数: 16

約数和(自身を含む): 31036896

約数和(自身を除く): 11318858

約数列:

[1, 2, 23, 46, 193, 386, 2221, 4439, 4442, 8878, 51083, 102166, 428653, 857306, 9859019, 19718038]

約数ペア:

[(1, 19718038), (2, 9859019), (23, 857306), (46, 428653), (193, 102166), (386, 51083), (2221, 8878), (4439, 4442)]