20999160972

素因数分解:

$2^2\times 3^2\times {\mathrm{15073}}^1\times {\mathrm{38699}}^1$

素因数の和:53782

約数の個数: 36

約数和(自身を含む): 53086105800

約数和(自身を除く): 32086944828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 15073, 30146, 38699, 45219, 60292, 77398, 90438, 116097, 135657, 154796, 180876, 232194, 271314, 348291, 464388, 542628, 696582, 1393164, 583310027, 1166620054, 1749930081, 2333240108, 3499860162, 5249790243, 6999720324, 10499580486, 20999160972]

約数ペア:

[(1, 20999160972), (2, 10499580486), (3, 6999720324), (4, 5249790243), (6, 3499860162), (9, 2333240108), (12, 1749930081), (18, 1166620054), (36, 583310027), (15073, 1393164), (30146, 696582), (38699, 542628), (45219, 464388), (60292, 348291), (77398, 271314), (90438, 232194), (116097, 180876), (135657, 154796)]