251365491

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{733}}^1\times {\mathrm{977}}^1$

素因数の和:1732

約数の個数: 32

約数和(自身を含む): 401997120

約数和(自身を除く): 150631629

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 733, 977, 2199, 2931, 6597, 8793, 9529, 12701, 19791, 26379, 28587, 38103, 85761, 114309, 257283, 342927, 716141, 2148423, 6445269, 9309833, 19335807, 27929499, 83788497, 251365491]

約数ペア:

[(1, 251365491), (3, 83788497), (9, 27929499), (13, 19335807), (27, 9309833), (39, 6445269), (117, 2148423), (351, 716141), (733, 342927), (977, 257283), (2199, 114309), (2931, 85761), (6597, 38103), (8793, 28587), (9529, 26379), (12701, 19791)]