21000894997

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4813}}^1\times {\mathrm{7919}}^1$

素因数の和:12780

約数の個数: 16

約数和(自身を含む): 22876128000

約数和(自身を除く): 1875233003

約数列:

[1, 19, 29, 551, 4813, 7919, 91447, 139577, 150461, 229651, 2651963, 4363369, 38114147, 724168793, 1105310263, 21000894997]

約数ペア:

[(1, 21000894997), (19, 1105310263), (29, 724168793), (551, 38114147), (4813, 4363369), (7919, 2651963), (91447, 229651), (139577, 150461)]