28071405

素因数分解:

$3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1993}}^1$

素因数の和:2317

約数の個数: 24

約数和(自身を含む): 48837048

約数和(自身を除く): 20765643

約数列:

[1, 3, 5, 9, 15, 45, 313, 939, 1565, 1993, 2817, 4695, 5979, 9965, 14085, 17937, 29895, 89685, 623809, 1871427, 3119045, 5614281, 9357135, 28071405]

約数ペア:

[(1, 28071405), (3, 9357135), (5, 5614281), (9, 3119045), (15, 1871427), (45, 623809), (313, 89685), (939, 29895), (1565, 17937), (1993, 14085), (2817, 9965), (4695, 5979)]