19729604

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{457}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 35548128

約数和(自身を除く): 15818524

約数列:

[1, 2, 4, 43, 86, 172, 251, 457, 502, 914, 1004, 1828, 10793, 19651, 21586, 39302, 43172, 78604, 114707, 229414, 458828, 4932401, 9864802, 19729604]

約数ペア:

[(1, 19729604), (2, 9864802), (4, 4932401), (43, 458828), (86, 229414), (172, 114707), (251, 78604), (457, 43172), (502, 39302), (914, 21586), (1004, 19651), (1828, 10793)]