16985685

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 11318955

約数列:

[1, 3, 5, 15, 41, 71, 123, 205, 213, 355, 389, 615, 1065, 1167, 1945, 2911, 5835, 8733, 14555, 15949, 27619, 43665, 47847, 79745, 82857, 138095, 239235, 414285, 1132379, 3397137, 5661895, 16985685]

約数ペア:

[(1, 16985685), (3, 5661895), (5, 3397137), (15, 1132379), (41, 414285), (71, 239235), (123, 138095), (205, 82857), (213, 79745), (355, 47847), (389, 43665), (615, 27619), (1065, 15949), (1167, 14555), (1945, 8733), (2911, 5835)]