21801136

素因数分解:

$2^4\times 7^1\times {\mathrm{194653}}^1$

素因数の和:194668

約数の個数: 20

約数和(自身を含む): 48274192

約数和(自身を除く): 26473056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194653, 389306, 778612, 1362571, 1557224, 2725142, 3114448, 5450284, 10900568, 21801136]

約数ペア:

[(1, 21801136), (2, 10900568), (4, 5450284), (7, 3114448), (8, 2725142), (14, 1557224), (16, 1362571), (28, 778612), (56, 389306), (112, 194653)]