26780451971

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1\times {\mathrm{18517}}^1$

素因数の和:19251

約数の個数: 32

約数和(自身を含む): 34445257728

約数和(自身を除く): 7664805757

約数列:

[1, 7, 13, 23, 91, 161, 299, 691, 2093, 4837, 8983, 15893, 18517, 62881, 111251, 129619, 206609, 240721, 425891, 1446263, 1685047, 2981237, 5536583, 12795247, 38756081, 89566729, 166338211, 294290681, 1164367477, 2060034767, 3825778853, 26780451971]

約数ペア:

[(1, 26780451971), (7, 3825778853), (13, 2060034767), (23, 1164367477), (91, 294290681), (161, 166338211), (299, 89566729), (691, 38756081), (2093, 12795247), (4837, 5536583), (8983, 2981237), (15893, 1685047), (18517, 1446263), (62881, 425891), (111251, 240721), (129619, 206609)]