19151559

素因数分解:

$3^9\times 7^1\times {\mathrm{139}}^1$

素因数の和:173

約数の個数: 40

約数和(自身を含む): 33066880

約数和(自身を除く): 13915321

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 243, 417, 567, 729, 973, 1251, 1701, 2187, 2919, 3753, 5103, 6561, 8757, 11259, 15309, 19683, 26271, 33777, 45927, 78813, 101331, 137781, 236439, 303993, 709317, 911979, 2127951, 2735937, 6383853, 19151559]

約数ペア:

[(1, 19151559), (3, 6383853), (7, 2735937), (9, 2127951), (21, 911979), (27, 709317), (63, 303993), (81, 236439), (139, 137781), (189, 101331), (243, 78813), (417, 45927), (567, 33777), (729, 26271), (973, 19683), (1251, 15309), (1701, 11259), (2187, 8757), (2919, 6561), (3753, 5103)]