20009493

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 54

約数和(自身を含む): 35942946

約数和(自身を除く): 15933453

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 157, 289, 357, 441, 471, 833, 867, 1071, 1099, 1413, 2023, 2499, 2601, 2669, 3297, 6069, 7497, 7693, 8007, 9891, 14161, 18207, 18683, 23079, 24021, 42483, 45373, 56049, 69237, 127449, 130781, 136119, 168147, 317611, 392343, 408357, 952833, 1177029, 2223277, 2858499, 6669831, 20009493]

約数ペア:

[(1, 20009493), (3, 6669831), (7, 2858499), (9, 2223277), (17, 1177029), (21, 952833), (49, 408357), (51, 392343), (63, 317611), (119, 168147), (147, 136119), (153, 130781), (157, 127449), (289, 69237), (357, 56049), (441, 45373), (471, 42483), (833, 24021), (867, 23079), (1071, 18683), (1099, 18207), (1413, 14161), (2023, 9891), (2499, 8007), (2601, 7693), (2669, 7497), (3297, 6069)]