18640734

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 44728320

約数和(自身を除く): 26087586

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 103, 139, 186, 206, 217, 278, 309, 417, 434, 618, 651, 721, 834, 973, 1302, 1442, 1946, 2163, 2919, 3193, 4309, 4326, 5838, 6386, 8618, 9579, 12927, 14317, 19158, 22351, 25854, 28634, 30163, 42951, 44702, 60326, 67053, 85902, 90489, 100219, 134106, 180978, 200438, 300657, 443827, 601314, 887654, 1331481, 2662962, 3106789, 6213578, 9320367, 18640734]

約数ペア:

[(1, 18640734), (2, 9320367), (3, 6213578), (6, 3106789), (7, 2662962), (14, 1331481), (21, 887654), (31, 601314), (42, 443827), (62, 300657), (93, 200438), (103, 180978), (139, 134106), (186, 100219), (206, 90489), (217, 85902), (278, 67053), (309, 60326), (417, 44702), (434, 42951), (618, 30163), (651, 28634), (721, 25854), (834, 22351), (973, 19158), (1302, 14317), (1442, 12927), (1946, 9579), (2163, 8618), (2919, 6386), (3193, 5838), (4309, 4326)]