31291305

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{443}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 53322624

約数和(自身を除く): 22031319

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 277, 443, 831, 1329, 1385, 2215, 4155, 4709, 6645, 7531, 14127, 22593, 23545, 37655, 70635, 112965, 122711, 368133, 613555, 1840665, 2086087, 6258261, 10430435, 31291305]

約数ペア:

[(1, 31291305), (3, 10430435), (5, 6258261), (15, 2086087), (17, 1840665), (51, 613555), (85, 368133), (255, 122711), (277, 112965), (443, 70635), (831, 37655), (1329, 23545), (1385, 22593), (2215, 14127), (4155, 7531), (4709, 6645)]