21963668

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{39503}}^1$

素因数の和:39646

約数の個数: 12

約数和(自身を含む): 38713920

約数和(自身を除く): 16750252

約数列:

[1, 2, 4, 139, 278, 556, 39503, 79006, 158012, 5490917, 10981834, 21963668]

約数ペア:

[(1, 21963668), (2, 10981834), (4, 5490917), (139, 158012), (278, 79006), (556, 39503)]