990218817

素因数分解:

$3^3\times 7^1\times {\mathrm{1747}}^1\times {\mathrm{2999}}^1$

素因数の和:4762

約数の個数: 32

約数和(自身を含む): 1678080000

約数和(自身を除く): 687861183

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1747, 2999, 5241, 8997, 12229, 15723, 20993, 26991, 36687, 47169, 62979, 80973, 110061, 188937, 330183, 566811, 5239253, 15717759, 36674771, 47153277, 110024313, 141459831, 330072939, 990218817]

約数ペア:

[(1, 990218817), (3, 330072939), (7, 141459831), (9, 110024313), (21, 47153277), (27, 36674771), (63, 15717759), (189, 5239253), (1747, 566811), (2999, 330183), (5241, 188937), (8997, 110061), (12229, 80973), (15723, 62979), (20993, 47169), (26991, 36687)]