20669229

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{919}}^1$

素因数の和:959

約数の個数: 48

約数和(自身を含む): 37756800

約数和(自身を除く): 17087571

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 119, 147, 153, 189, 357, 441, 459, 833, 919, 1071, 1323, 2499, 2757, 3213, 6433, 7497, 8271, 15623, 19299, 22491, 24813, 45031, 46869, 57897, 109361, 135093, 140607, 173691, 328083, 405279, 421821, 765527, 984249, 1215837, 2296581, 2952747, 6889743, 20669229]

約数ペア:

[(1, 20669229), (3, 6889743), (7, 2952747), (9, 2296581), (17, 1215837), (21, 984249), (27, 765527), (49, 421821), (51, 405279), (63, 328083), (119, 173691), (147, 140607), (153, 135093), (189, 109361), (357, 57897), (441, 46869), (459, 45031), (833, 24813), (919, 22491), (1071, 19299), (1323, 15623), (2499, 8271), (2757, 7497), (3213, 6433)]