39989313

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 71774976

約数和(自身を除く): 31785663

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 157, 273, 311, 471, 819, 933, 1099, 1413, 2041, 2177, 2799, 3297, 4043, 6123, 6531, 9891, 12129, 14287, 18369, 19593, 28301, 36387, 42861, 48827, 84903, 128583, 146481, 254709, 341789, 439443, 634751, 1025367, 1904253, 3076101, 4443257, 5712759, 13329771, 39989313]

約数ペア:

[(1, 39989313), (3, 13329771), (7, 5712759), (9, 4443257), (13, 3076101), (21, 1904253), (39, 1025367), (63, 634751), (91, 439443), (117, 341789), (157, 254709), (273, 146481), (311, 128583), (471, 84903), (819, 48827), (933, 42861), (1099, 36387), (1413, 28301), (2041, 19593), (2177, 18369), (2799, 14287), (3297, 12129), (4043, 9891), (6123, 6531)]