19665603404

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{55240459}}^1$

素因数の和:55240552

約数の個数: 12

約数和(自身を含む): 34801489800

約数和(自身を除く): 15135886396

約数列:

[1, 2, 4, 89, 178, 356, 55240459, 110480918, 220961836, 4916400851, 9832801702, 19665603404]

約数ペア:

[(1, 19665603404), (2, 9832801702), (4, 4916400851), (89, 220961836), (178, 110480918), (356, 55240459)]