2778405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 5197824

約数和(自身を除く): 2419419

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 563, 705, 987, 1645, 1689, 2815, 3941, 4935, 8445, 11823, 19705, 26461, 59115, 79383, 132305, 185227, 396915, 555681, 926135, 2778405]

約数ペア:

[(1, 2778405), (3, 926135), (5, 555681), (7, 396915), (15, 185227), (21, 132305), (35, 79383), (47, 59115), (105, 26461), (141, 19705), (235, 11823), (329, 8445), (563, 4935), (705, 3941), (987, 2815), (1645, 1689)]