20180490897

素因数分解:

$3^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{711307}}^1$

素因数の和:711517

約数の個数: 24

約数和(自身を含む): 31462575456

約数和(自身を除く): 11282084559

約数列:

[1, 3, 7, 21, 49, 147, 193, 579, 1351, 4053, 9457, 28371, 711307, 2133921, 4979149, 14937447, 34854043, 104562129, 137282251, 411846753, 960975757, 2882927271, 6726830299, 20180490897]

約数ペア:

[(1, 20180490897), (3, 6726830299), (7, 2882927271), (21, 960975757), (49, 411846753), (147, 137282251), (193, 104562129), (579, 34854043), (1351, 14937447), (4053, 4979149), (9457, 2133921), (28371, 711307)]