19894808

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80221}}^1$

素因数の和:80258

約数の個数: 16

約数和(自身を含む): 38506560

約数和(自身を除く): 18611752

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80221, 160442, 320884, 641768, 2486851, 4973702, 9947404, 19894808]

約数ペア:

[(1, 19894808), (2, 9947404), (4, 4973702), (8, 2486851), (31, 641768), (62, 320884), (124, 160442), (248, 80221)]