20443912

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 39616920

約数和(自身を除く): 19173008

約数列:

[1, 2, 4, 8, 41, 82, 157, 164, 314, 328, 397, 628, 794, 1256, 1588, 3176, 6437, 12874, 16277, 25748, 32554, 51496, 62329, 65108, 124658, 130216, 249316, 498632, 2555489, 5110978, 10221956, 20443912]

約数ペア:

[(1, 20443912), (2, 10221956), (4, 5110978), (8, 2555489), (41, 498632), (82, 249316), (157, 130216), (164, 124658), (314, 65108), (328, 62329), (397, 51496), (628, 32554), (794, 25748), (1256, 16277), (1588, 12874), (3176, 6437)]