20901168

素因数分解:

$2^4\times 3^2\times {\mathrm{173}}^1\times {\mathrm{839}}^1$

素因数の和:1026

約数の個数: 60

約数和(自身を含む): 58902480

約数和(自身を除く): 38001312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 173, 346, 519, 692, 839, 1038, 1384, 1557, 1678, 2076, 2517, 2768, 3114, 3356, 4152, 5034, 6228, 6712, 7551, 8304, 10068, 12456, 13424, 15102, 20136, 24912, 30204, 40272, 60408, 120816, 145147, 290294, 435441, 580588, 870882, 1161176, 1306323, 1741764, 2322352, 2612646, 3483528, 5225292, 6967056, 10450584, 20901168]

約数ペア:

[(1, 20901168), (2, 10450584), (3, 6967056), (4, 5225292), (6, 3483528), (8, 2612646), (9, 2322352), (12, 1741764), (16, 1306323), (18, 1161176), (24, 870882), (36, 580588), (48, 435441), (72, 290294), (144, 145147), (173, 120816), (346, 60408), (519, 40272), (692, 30204), (839, 24912), (1038, 20136), (1384, 15102), (1557, 13424), (1678, 12456), (2076, 10068), (2517, 8304), (2768, 7551), (3114, 6712), (3356, 6228), (4152, 5034)]