19909743

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41221}}^1$

素因数の和:41254

約数の個数: 16

約数和(自身を含む): 31658496

約数和(自身を除く): 11748753

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 41221, 123663, 288547, 865641, 948083, 2844249, 6636581, 19909743]

約数ペア:

[(1, 19909743), (3, 6636581), (7, 2844249), (21, 948083), (23, 865641), (69, 288547), (161, 123663), (483, 41221)]