18196563

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2129}}^1$

素因数の和:2187

約数の個数: 32

約数和(自身を含む): 31080960

約数和(自身を除く): 12884397

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2129, 2849, 6387, 8547, 14903, 23419, 44709, 70257, 78773, 163933, 236319, 491799, 551411, 866503, 1654233, 2599509, 6065521, 18196563]

約数ペア:

[(1, 18196563), (3, 6065521), (7, 2599509), (11, 1654233), (21, 866503), (33, 551411), (37, 491799), (77, 236319), (111, 163933), (231, 78773), (259, 70257), (407, 44709), (777, 23419), (1221, 14903), (2129, 8547), (2849, 6387)]