21070147300

素因数分解:

$2^2\times 5^2\times {\mathrm{1997}}^1\times {\mathrm{105509}}^1$

素因数の和:107520

約数の個数: 36

約数和(自身を含む): 45745548660

約数和(自身を除く): 24675401360

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1997, 3994, 7988, 9985, 19970, 39940, 49925, 99850, 105509, 199700, 211018, 422036, 527545, 1055090, 2110180, 2637725, 5275450, 10550900, 210701473, 421402946, 842805892, 1053507365, 2107014730, 4214029460, 5267536825, 10535073650, 21070147300]

約数ペア:

[(1, 21070147300), (2, 10535073650), (4, 5267536825), (5, 4214029460), (10, 2107014730), (20, 1053507365), (25, 842805892), (50, 421402946), (100, 210701473), (1997, 10550900), (3994, 5275450), (7988, 2637725), (9985, 2110180), (19970, 1055090), (39940, 527545), (49925, 422036), (99850, 211018), (105509, 199700)]