18781098

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1871}}^1$

素因数の和:2122

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 24349782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 239, 478, 717, 1434, 1673, 1871, 3346, 3742, 5019, 5613, 10038, 11226, 13097, 26194, 39291, 78582, 447169, 894338, 1341507, 2683014, 3130183, 6260366, 9390549, 18781098]

約数ペア:

[(1, 18781098), (2, 9390549), (3, 6260366), (6, 3130183), (7, 2683014), (14, 1341507), (21, 894338), (42, 447169), (239, 78582), (478, 39291), (717, 26194), (1434, 13097), (1673, 11226), (1871, 10038), (3346, 5613), (3742, 5019)]