18157438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 30492000

約数和(自身を除く): 12334562

約数列:

[1, 2, 13, 26, 43, 86, 109, 149, 218, 298, 559, 1118, 1417, 1937, 2834, 3874, 4687, 6407, 9374, 12814, 16241, 32482, 60931, 83291, 121862, 166582, 211133, 422266, 698363, 1396726, 9078719, 18157438]

約数ペア:

[(1, 18157438), (2, 9078719), (13, 1396726), (26, 698363), (43, 422266), (86, 211133), (109, 166582), (149, 121862), (218, 83291), (298, 60931), (559, 32482), (1118, 16241), (1417, 12814), (1937, 9374), (2834, 6407), (3874, 4687)]