1388702931

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{557}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 2375847936

約数和(自身を除く): 987145005

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 251, 301, 473, 557, 753, 903, 1419, 1671, 1757, 2761, 3311, 3899, 5271, 6127, 8283, 9933, 10793, 11697, 18381, 19327, 23951, 32379, 42889, 57981, 71853, 75551, 118723, 128667, 139807, 167657, 226653, 263461, 356169, 419421, 502971, 790383, 831061, 978649, 1537877, 1844227, 2493183, 2935947, 4613631, 5532681, 6011701, 10765139, 18035103, 32295417, 42081907, 66128711, 126245721, 198386133, 462900977, 1388702931]

約数ペア:

[(1, 1388702931), (3, 462900977), (7, 198386133), (11, 126245721), (21, 66128711), (33, 42081907), (43, 32295417), (77, 18035103), (129, 10765139), (231, 6011701), (251, 5532681), (301, 4613631), (473, 2935947), (557, 2493183), (753, 1844227), (903, 1537877), (1419, 978649), (1671, 831061), (1757, 790383), (2761, 502971), (3311, 419421), (3899, 356169), (5271, 263461), (6127, 226653), (8283, 167657), (9933, 139807), (10793, 128667), (11697, 118723), (18381, 75551), (19327, 71853), (23951, 57981), (32379, 42889)]