19987070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{117571}}^1$

素因数の和:117595

約数の個数: 16

約数和(自身を含む): 38093328

約数和(自身を除く): 18106258

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 117571, 235142, 587855, 1175710, 1998707, 3997414, 9993535, 19987070]

約数ペア:

[(1, 19987070), (2, 9993535), (5, 3997414), (10, 1998707), (17, 1175710), (34, 587855), (85, 235142), (170, 117571)]