20517624

素因数分解:

$2^3\times 3^4\times {\mathrm{31663}}^1$

素因数の和:31681

約数の個数: 40

約数和(自身を含む): 57470160

約数和(自身を除く): 36952536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31663, 63326, 94989, 126652, 189978, 253304, 284967, 379956, 569934, 759912, 854901, 1139868, 1709802, 2279736, 2564703, 3419604, 5129406, 6839208, 10258812, 20517624]

約数ペア:

[(1, 20517624), (2, 10258812), (3, 6839208), (4, 5129406), (6, 3419604), (8, 2564703), (9, 2279736), (12, 1709802), (18, 1139868), (24, 854901), (27, 759912), (36, 569934), (54, 379956), (72, 284967), (81, 253304), (108, 189978), (162, 126652), (216, 94989), (324, 63326), (648, 31663)]