21091554

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2879}}^1$

素因数の和:2935

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 30126366

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 37, 66, 74, 99, 111, 198, 222, 333, 407, 666, 814, 1221, 2442, 2879, 3663, 5758, 7326, 8637, 17274, 25911, 31669, 51822, 63338, 95007, 106523, 190014, 213046, 285021, 319569, 570042, 639138, 958707, 1171753, 1917414, 2343506, 3515259, 7030518, 10545777, 21091554]

約数ペア:

[(1, 21091554), (2, 10545777), (3, 7030518), (6, 3515259), (9, 2343506), (11, 1917414), (18, 1171753), (22, 958707), (33, 639138), (37, 570042), (66, 319569), (74, 285021), (99, 213046), (111, 190014), (198, 106523), (222, 95007), (333, 63338), (407, 51822), (666, 31669), (814, 25911), (1221, 17274), (2442, 8637), (2879, 7326), (3663, 5758)]