19998846

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 51240960

約数和(自身を除く): 31242114

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 191, 277, 378, 382, 554, 573, 831, 1146, 1337, 1662, 1719, 1939, 2493, 2674, 3438, 3878, 4011, 4986, 5157, 5817, 7479, 8022, 10314, 11634, 12033, 14958, 17451, 24066, 34902, 36099, 52353, 52907, 72198, 104706, 105814, 158721, 317442, 370349, 476163, 740698, 952326, 1111047, 1428489, 2222094, 2856978, 3333141, 6666282, 9999423, 19998846]

約数ペア:

[(1, 19998846), (2, 9999423), (3, 6666282), (6, 3333141), (7, 2856978), (9, 2222094), (14, 1428489), (18, 1111047), (21, 952326), (27, 740698), (42, 476163), (54, 370349), (63, 317442), (126, 158721), (189, 105814), (191, 104706), (277, 72198), (378, 52907), (382, 52353), (554, 36099), (573, 34902), (831, 24066), (1146, 17451), (1337, 14958), (1662, 12033), (1719, 11634), (1939, 10314), (2493, 8022), (2674, 7479), (3438, 5817), (3878, 5157), (4011, 4986)]