18400904

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 35640000

約数和(自身を除く): 17239096

約数列:

[1, 2, 4, 8, 43, 86, 149, 172, 298, 344, 359, 596, 718, 1192, 1436, 2872, 6407, 12814, 15437, 25628, 30874, 51256, 53491, 61748, 106982, 123496, 213964, 427928, 2300113, 4600226, 9200452, 18400904]

約数ペア:

[(1, 18400904), (2, 9200452), (4, 4600226), (8, 2300113), (43, 427928), (86, 213964), (149, 123496), (172, 106982), (298, 61748), (344, 53491), (359, 51256), (596, 30874), (718, 25628), (1192, 15437), (1436, 12814), (2872, 6407)]