31680729

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4937}}^1$

素因数の和:4997

約数の個数: 24

約数和(自身を含む): 49300992

約数和(自身を除く): 17620263

約数列:

[1, 3, 9, 23, 31, 69, 93, 207, 279, 713, 2139, 4937, 6417, 14811, 44433, 113551, 153047, 340653, 459141, 1021959, 1377423, 3520081, 10560243, 31680729]

約数ペア:

[(1, 31680729), (3, 10560243), (9, 3520081), (23, 1377423), (31, 1021959), (69, 459141), (93, 340653), (207, 153047), (279, 113551), (713, 44433), (2139, 14811), (4937, 6417)]