20795517

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 31104216

約数和(自身を除く): 10308699

約数列:

[1, 3, 9, 37, 111, 197, 317, 333, 591, 951, 1773, 2853, 7289, 11729, 21867, 35187, 62449, 65601, 105561, 187347, 562041, 2310613, 6931839, 20795517]

約数ペア:

[(1, 20795517), (3, 6931839), (9, 2310613), (37, 562041), (111, 187347), (197, 105561), (317, 65601), (333, 62449), (591, 35187), (951, 21867), (1773, 11729), (2853, 7289)]