19665877497

素因数分解:

$3^1\times 7^1\times {\mathrm{6311}}^1\times {\mathrm{148387}}^1$

素因数の和:154708

約数の個数: 16

約数和(自身を含む): 29972001792

約数和(自身を除く): 10306124295

約数列:

[1, 3, 7, 21, 6311, 18933, 44177, 132531, 148387, 445161, 1038709, 3116127, 936470357, 2809411071, 6555292499, 19665877497]

約数ペア:

[(1, 19665877497), (3, 6555292499), (7, 2809411071), (21, 936470357), (6311, 3116127), (18933, 1038709), (44177, 445161), (132531, 148387)]