311283

素因数分解:

$3^6\times 7^1\times {\mathrm{61}}^1$

素因数の和:86

約数の個数: 28

約数和(自身を含む): 542128

約数和(自身を除く): 230845

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 243, 427, 549, 567, 729, 1281, 1647, 1701, 3843, 4941, 5103, 11529, 14823, 34587, 44469, 103761, 311283]

約数ペア:

[(1, 311283), (3, 103761), (7, 44469), (9, 34587), (21, 14823), (27, 11529), (61, 5103), (63, 4941), (81, 3843), (183, 1701), (189, 1647), (243, 1281), (427, 729), (549, 567)]