18880816

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13259}}^1$

素因数の和:13356

約数の個数: 20

約数和(自身を含む): 36995400

約数和(自身を除く): 18114584

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13259, 26518, 53036, 106072, 212144, 1180051, 2360102, 4720204, 9440408, 18880816]

約数ペア:

[(1, 18880816), (2, 9440408), (4, 4720204), (8, 2360102), (16, 1180051), (89, 212144), (178, 106072), (356, 53036), (712, 26518), (1424, 13259)]