19707506

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 18596494

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 62, 91, 98, 182, 217, 403, 434, 499, 637, 806, 998, 1274, 1519, 2821, 3038, 3493, 5642, 6487, 6986, 12974, 15469, 19747, 24451, 30938, 39494, 45409, 48902, 90818, 108283, 201097, 216566, 317863, 402194, 635726, 757981, 1407679, 1515962, 2815358, 9853753, 19707506]

約数ペア:

[(1, 19707506), (2, 9853753), (7, 2815358), (13, 1515962), (14, 1407679), (26, 757981), (31, 635726), (49, 402194), (62, 317863), (91, 216566), (98, 201097), (182, 108283), (217, 90818), (403, 48902), (434, 45409), (499, 39494), (637, 30938), (806, 24451), (998, 19747), (1274, 15469), (1519, 12974), (2821, 6986), (3038, 6487), (3493, 5642)]