20286915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3323}}^1$

素因数の和:3379

約数の個数: 32

約数和(自身を含む): 36377856

約数和(自身を除く): 16090941

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 111, 165, 185, 407, 555, 1221, 2035, 3323, 6105, 9969, 16615, 36553, 49845, 109659, 122951, 182765, 368853, 548295, 614755, 1352461, 1844265, 4057383, 6762305, 20286915]

約数ペア:

[(1, 20286915), (3, 6762305), (5, 4057383), (11, 1844265), (15, 1352461), (33, 614755), (37, 548295), (55, 368853), (111, 182765), (165, 122951), (185, 109659), (407, 49845), (555, 36553), (1221, 16615), (2035, 9969), (3323, 6105)]