1981105

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{107}}^1$

素因数の和:165

約数の個数: 24

約数和(自身を含む): 2866752

約数和(自身を除く): 885647

約数列:

[1, 5, 7, 23, 35, 107, 115, 161, 529, 535, 749, 805, 2461, 2645, 3703, 3745, 12305, 17227, 18515, 56603, 86135, 283015, 396221, 1981105]

約数ペア:

[(1, 1981105), (5, 396221), (7, 283015), (23, 86135), (35, 56603), (107, 18515), (115, 17227), (161, 12305), (529, 3745), (535, 3703), (749, 2645), (805, 2461)]