20728908

素因数分解:

$2^2\times 3^2\times {\mathrm{593}}^1\times {\mathrm{971}}^1$

素因数の和:1574

約数の個数: 36

約数和(自身を含む): 52540488

約数和(自身を除く): 31811580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 593, 971, 1186, 1779, 1942, 2372, 2913, 3558, 3884, 5337, 5826, 7116, 8739, 10674, 11652, 17478, 21348, 34956, 575803, 1151606, 1727409, 2303212, 3454818, 5182227, 6909636, 10364454, 20728908]

約数ペア:

[(1, 20728908), (2, 10364454), (3, 6909636), (4, 5182227), (6, 3454818), (9, 2303212), (12, 1727409), (18, 1151606), (36, 575803), (593, 34956), (971, 21348), (1186, 17478), (1779, 11652), (1942, 10674), (2372, 8739), (2913, 7116), (3558, 5826), (3884, 5337)]