20459943

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^2$

素因数の和:232

約数の個数: 36

約数和(自身を含む): 34992048

約数和(自身を除く): 14532105

約数列:

[1, 3, 7, 9, 21, 41, 63, 89, 123, 267, 287, 369, 623, 801, 861, 1869, 2583, 3649, 5607, 7921, 10947, 23763, 25543, 32841, 55447, 71289, 76629, 166341, 229887, 324761, 499023, 974283, 2273327, 2922849, 6819981, 20459943]

約数ペア:

[(1, 20459943), (3, 6819981), (7, 2922849), (9, 2273327), (21, 974283), (41, 499023), (63, 324761), (89, 229887), (123, 166341), (267, 76629), (287, 71289), (369, 55447), (623, 32841), (801, 25543), (861, 23763), (1869, 10947), (2583, 7921), (3649, 5607)]