19980459842

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23396323}}^1$

素因数の和:23396393

約数の個数: 16

約数和(自身を含む): 34813730112

約数和(自身を除く): 14833270270

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 23396323, 46792646, 163774261, 327548522, 1427175703, 2854351406, 9990229921, 19980459842]

約数ペア:

[(1, 19980459842), (2, 9990229921), (7, 2854351406), (14, 1427175703), (61, 327548522), (122, 163774261), (427, 46792646), (854, 23396323)]