279280329

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 402447360

約数和(自身を除く): 123167031

約数列:

[1, 3, 23, 37, 69, 111, 139, 417, 787, 851, 2361, 2553, 3197, 5143, 9591, 15429, 18101, 29119, 54303, 87357, 109393, 118289, 328179, 354867, 669737, 2009211, 2516039, 4047541, 7548117, 12142623, 93093443, 279280329]

約数ペア:

[(1, 279280329), (3, 93093443), (23, 12142623), (37, 7548117), (69, 4047541), (111, 2516039), (139, 2009211), (417, 669737), (787, 354867), (851, 328179), (2361, 118289), (2553, 109393), (3197, 87357), (5143, 54303), (9591, 29119), (15429, 18101)]