12720796557

素因数分解:

$3^1\times 7^2\times {\mathrm{367}}^1\times {\mathrm{235793}}^1$

素因数の和:236177

約数の個数: 24

約数和(自身を含む): 19784059776

約数和(自身を除く): 7063263219

約数列:

[1, 3, 7, 21, 49, 147, 367, 1101, 2569, 7707, 17983, 53949, 235793, 707379, 1650551, 4951653, 11553857, 34661571, 86536031, 259608093, 605752217, 1817256651, 4240265519, 12720796557]

約数ペア:

[(1, 12720796557), (3, 4240265519), (7, 1817256651), (21, 605752217), (49, 259608093), (147, 86536031), (367, 34661571), (1101, 11553857), (2569, 4951653), (7707, 1650551), (17983, 707379), (53949, 235793)]