68904021

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{21247}}^1$

素因数の和:21320

約数の個数: 16

約数和(自身を含む): 97910784

約数和(自身を除く): 29006763

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 21247, 63741, 488681, 998609, 1466043, 2995827, 22968007, 68904021]

約数ペア:

[(1, 68904021), (3, 22968007), (23, 2995827), (47, 1466043), (69, 998609), (141, 488681), (1081, 63741), (3243, 21247)]