21539270

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1319}}^1$

素因数の和:1420

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 19518010

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1319, 1633, 2638, 3266, 6595, 8165, 13190, 16330, 30337, 60674, 93649, 151685, 187298, 303370, 468245, 936490, 2153927, 4307854, 10769635, 21539270]

約数ペア:

[(1, 21539270), (2, 10769635), (5, 4307854), (10, 2153927), (23, 936490), (46, 468245), (71, 303370), (115, 187298), (142, 151685), (230, 93649), (355, 60674), (710, 30337), (1319, 16330), (1633, 13190), (2638, 8165), (3266, 6595)]