20931844245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{254971}}^1$

素因数の和:255413

約数の個数: 32

約数和(自身を含む): 36152989824

約数和(自身を除く): 15221145579

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 421, 1263, 2105, 5473, 6315, 16419, 27365, 82095, 254971, 764913, 1274855, 3314623, 3824565, 9943869, 16573115, 49719345, 107342791, 322028373, 536713955, 1395456283, 1610141865, 4186368849, 6977281415, 20931844245]

約数ペア:

[(1, 20931844245), (3, 6977281415), (5, 4186368849), (13, 1610141865), (15, 1395456283), (39, 536713955), (65, 322028373), (195, 107342791), (421, 49719345), (1263, 16573115), (2105, 9943869), (5473, 3824565), (6315, 3314623), (16419, 1274855), (27365, 764913), (82095, 254971)]