20541615

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 13520721

約数列:

[1, 3, 5, 15, 41, 123, 127, 205, 263, 381, 615, 635, 789, 1315, 1905, 3945, 5207, 10783, 15621, 26035, 32349, 33401, 53915, 78105, 100203, 161745, 167005, 501015, 1369441, 4108323, 6847205, 20541615]

約数ペア:

[(1, 20541615), (3, 6847205), (5, 4108323), (15, 1369441), (41, 501015), (123, 167005), (127, 161745), (205, 100203), (263, 78105), (381, 53915), (615, 33401), (635, 32349), (789, 26035), (1315, 15621), (1905, 10783), (3945, 5207)]