551691

素因数分解:

$3^4\times 7^2\times {\mathrm{139}}^1$

素因数の和:165

約数の個数: 30

約数和(自身を含む): 965580

約数和(自身を除く): 413889

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 139, 147, 189, 417, 441, 567, 973, 1251, 1323, 2919, 3753, 3969, 6811, 8757, 11259, 20433, 26271, 61299, 78813, 183897, 551691]

約数ペア:

[(1, 551691), (3, 183897), (7, 78813), (9, 61299), (21, 26271), (27, 20433), (49, 11259), (63, 8757), (81, 6811), (139, 3969), (147, 3753), (189, 2919), (417, 1323), (441, 1251), (567, 973)]