19963860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47533}}^1$

素因数の和:47552

約数の個数: 48

約数和(自身を含む): 63885696

約数和(自身を除く): 43921836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47533, 95066, 142599, 190132, 237665, 285198, 332731, 475330, 570396, 665462, 712995, 950660, 998193, 1330924, 1425990, 1663655, 1996386, 2851980, 3327310, 3992772, 4990965, 6654620, 9981930, 19963860]

約数ペア:

[(1, 19963860), (2, 9981930), (3, 6654620), (4, 4990965), (5, 3992772), (6, 3327310), (7, 2851980), (10, 1996386), (12, 1663655), (14, 1425990), (15, 1330924), (20, 998193), (21, 950660), (28, 712995), (30, 665462), (35, 570396), (42, 475330), (60, 332731), (70, 285198), (84, 237665), (105, 190132), (140, 142599), (210, 95066), (420, 47533)]