19991986587

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{3329}}^1\times {\mathrm{39251}}^1$

素因数の和:42603

約数の個数: 24

約数和(自身を含む): 30585943440

約数和(自身を除く): 10593956853

約数列:

[1, 3, 9, 17, 51, 153, 3329, 9987, 29961, 39251, 56593, 117753, 169779, 353259, 509337, 667267, 2001801, 6005403, 130666579, 391999737, 1175999211, 2221331843, 6663995529, 19991986587]

約数ペア:

[(1, 19991986587), (3, 6663995529), (9, 2221331843), (17, 1175999211), (51, 391999737), (153, 130666579), (3329, 6005403), (9987, 2001801), (29961, 667267), (39251, 509337), (56593, 353259), (117753, 169779)]