20365233

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 33707520

約数和(自身を除く): 13342287

約数列:

[1, 3, 7, 21, 31, 41, 49, 93, 109, 123, 147, 217, 287, 327, 651, 763, 861, 1271, 1519, 2009, 2289, 3379, 3813, 4469, 4557, 5341, 6027, 8897, 10137, 13407, 16023, 23653, 26691, 31283, 62279, 70959, 93849, 138539, 165571, 186837, 218981, 415617, 496713, 656943, 969773, 2909319, 6788411, 20365233]

約数ペア:

[(1, 20365233), (3, 6788411), (7, 2909319), (21, 969773), (31, 656943), (41, 496713), (49, 415617), (93, 218981), (109, 186837), (123, 165571), (147, 138539), (217, 93849), (287, 70959), (327, 62279), (651, 31283), (763, 26691), (861, 23653), (1271, 16023), (1519, 13407), (2009, 10137), (2289, 8897), (3379, 6027), (3813, 5341), (4469, 4557)]