18403749

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 34175232

約数和(自身を除く): 15771483

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 207, 273, 299, 483, 819, 897, 977, 1449, 2093, 2691, 2931, 6279, 6839, 8793, 12701, 18837, 20517, 22471, 38103, 61551, 67413, 88907, 114309, 157297, 202239, 266721, 292123, 471891, 800163, 876369, 1415673, 2044861, 2629107, 6134583, 18403749]

約数ペア:

[(1, 18403749), (3, 6134583), (7, 2629107), (9, 2044861), (13, 1415673), (21, 876369), (23, 800163), (39, 471891), (63, 292123), (69, 266721), (91, 202239), (117, 157297), (161, 114309), (207, 88907), (273, 67413), (299, 61551), (483, 38103), (819, 22471), (897, 20517), (977, 18837), (1449, 12701), (2093, 8793), (2691, 6839), (2931, 6279)]