31266891

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:293

約数の個数: 40

約数和(自身を含む): 49065984

約数和(自身を除く): 17799093

約数列:

[1, 3, 9, 27, 43, 47, 81, 129, 141, 191, 387, 423, 573, 1161, 1269, 1719, 2021, 3483, 3807, 5157, 6063, 8213, 8977, 15471, 18189, 24639, 26931, 54567, 73917, 80793, 163701, 221751, 242379, 386011, 665253, 727137, 1158033, 3474099, 10422297, 31266891]

約数ペア:

[(1, 31266891), (3, 10422297), (9, 3474099), (27, 1158033), (43, 727137), (47, 665253), (81, 386011), (129, 242379), (141, 221751), (191, 163701), (387, 80793), (423, 73917), (573, 54567), (1161, 26931), (1269, 24639), (1719, 18189), (2021, 15471), (3483, 8977), (3807, 8213), (5157, 6063)]