18230823

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 30576000

約数和(自身を除く): 12345177

約数列:

[1, 3, 9, 13, 19, 39, 57, 59, 117, 139, 171, 177, 247, 417, 531, 741, 767, 1121, 1251, 1807, 2223, 2301, 2641, 3363, 5421, 6903, 7923, 8201, 10089, 14573, 16263, 23769, 24603, 34333, 43719, 73809, 102999, 106613, 131157, 155819, 308997, 319839, 467457, 959517, 1402371, 2025647, 6076941, 18230823]

約数ペア:

[(1, 18230823), (3, 6076941), (9, 2025647), (13, 1402371), (19, 959517), (39, 467457), (57, 319839), (59, 308997), (117, 155819), (139, 131157), (171, 106613), (177, 102999), (247, 73809), (417, 43719), (531, 34333), (741, 24603), (767, 23769), (1121, 16263), (1251, 14573), (1807, 10089), (2223, 8201), (2301, 7923), (2641, 6903), (3363, 5421)]