2789955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 5863104

約数和(自身を除く): 3073149

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 521, 595, 765, 1071, 1563, 1785, 2605, 3647, 4689, 5355, 7815, 8857, 10941, 18235, 23445, 26571, 32823, 44285, 54705, 61999, 79713, 132855, 164115, 185997, 309995, 398565, 557991, 929985, 2789955]

約数ペア:

[(1, 2789955), (3, 929985), (5, 557991), (7, 398565), (9, 309995), (15, 185997), (17, 164115), (21, 132855), (35, 79713), (45, 61999), (51, 54705), (63, 44285), (85, 32823), (105, 26571), (119, 23445), (153, 18235), (255, 10941), (315, 8857), (357, 7815), (521, 5355), (595, 4689), (765, 3647), (1071, 2605), (1563, 1785)]