21237212

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1231}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 39325440

約数和(自身を除く): 18088228

約数列:

[1, 2, 4, 19, 38, 76, 227, 454, 908, 1231, 2462, 4313, 4924, 8626, 17252, 23389, 46778, 93556, 279437, 558874, 1117748, 5309303, 10618606, 21237212]

約数ペア:

[(1, 21237212), (2, 10618606), (4, 5309303), (19, 1117748), (38, 558874), (76, 279437), (227, 93556), (454, 46778), (908, 23389), (1231, 17252), (2462, 8626), (4313, 4924)]