31036239

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 51251200

約数和(自身を除く): 20214961

約数列:

[1, 3, 9, 13, 31, 39, 43, 93, 117, 129, 199, 279, 387, 403, 559, 597, 1209, 1333, 1677, 1791, 2587, 3627, 3999, 5031, 6169, 7761, 8557, 11997, 17329, 18507, 23283, 25671, 51987, 55521, 77013, 80197, 111241, 155961, 240591, 265267, 333723, 721773, 795801, 1001169, 2387403, 3448471, 10345413, 31036239]

約数ペア:

[(1, 31036239), (3, 10345413), (9, 3448471), (13, 2387403), (31, 1001169), (39, 795801), (43, 721773), (93, 333723), (117, 265267), (129, 240591), (199, 155961), (279, 111241), (387, 80197), (403, 77013), (559, 55521), (597, 51987), (1209, 25671), (1333, 23283), (1677, 18507), (1791, 17329), (2587, 11997), (3627, 8557), (3999, 7761), (5031, 6169)]