21921099

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1559}}^1$

素因数の和:1714

約数の個数: 16

約数和(自身を含む): 30201600

約数和(自身を除く): 8280501

約数列:

[1, 3, 43, 109, 129, 327, 1559, 4677, 4687, 14061, 67037, 169931, 201111, 509793, 7307033, 21921099]

約数ペア:

[(1, 21921099), (3, 7307033), (43, 509793), (109, 201111), (129, 169931), (327, 67037), (1559, 14061), (4677, 4687)]