20960247

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2927}}^1$

素因数の和:2979

約数の個数: 32

約数和(自身を含む): 35979264

約数和(自身を除く): 15019017

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2927, 7161, 8781, 20489, 32197, 61467, 90737, 96591, 225379, 272211, 635159, 676137, 998107, 1905477, 2994321, 6986749, 20960247]

約数ペア:

[(1, 20960247), (3, 6986749), (7, 2994321), (11, 1905477), (21, 998107), (31, 676137), (33, 635159), (77, 272211), (93, 225379), (217, 96591), (231, 90737), (341, 61467), (651, 32197), (1023, 20489), (2387, 8781), (2927, 7161)]