864385921

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{289189}}^1$

素因数の和:289264

約数の個数: 12

約数和(自身を含む): 1021997460

約数和(自身を除く): 157611539

約数列:

[1, 7, 49, 61, 427, 2989, 289189, 2024323, 14170261, 17640529, 123483703, 864385921]

約数ペア:

[(1, 864385921), (7, 123483703), (49, 17640529), (61, 14170261), (427, 2024323), (2989, 289189)]