18875395

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4457}}^1$

素因数の和:4491

約数の個数: 24

約数和(自身を含む): 28459872

約数和(自身を除く): 9584477

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 4457, 22285, 31199, 49027, 155995, 245135, 343189, 539297, 1715945, 2696485, 3775079, 18875395]

約数ペア:

[(1, 18875395), (5, 3775079), (7, 2696485), (11, 1715945), (35, 539297), (55, 343189), (77, 245135), (121, 155995), (385, 49027), (605, 31199), (847, 22285), (4235, 4457)]