12901966

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 24307200

約数和(自身を除く): 11405234

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 199, 398, 421, 842, 1393, 2189, 2786, 2947, 4378, 4631, 5894, 9262, 15323, 30646, 32417, 64834, 83779, 167558, 586453, 921569, 1172906, 1843138, 6450983, 12901966]

約数ペア:

[(1, 12901966), (2, 6450983), (7, 1843138), (11, 1172906), (14, 921569), (22, 586453), (77, 167558), (154, 83779), (199, 64834), (398, 32417), (421, 30646), (842, 15323), (1393, 9262), (2189, 5894), (2786, 4631), (2947, 4378)]