20304438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:713

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 31120842

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 71, 77, 142, 154, 213, 231, 426, 462, 497, 619, 781, 994, 1238, 1491, 1562, 1857, 2343, 2982, 3714, 4333, 4686, 5467, 6809, 8666, 10934, 12999, 13618, 16401, 20427, 25998, 32802, 40854, 43949, 47663, 87898, 95326, 131847, 142989, 263694, 285978, 307643, 483439, 615286, 922929, 966878, 1450317, 1845858, 2900634, 3384073, 6768146, 10152219, 20304438]

約数ペア:

[(1, 20304438), (2, 10152219), (3, 6768146), (6, 3384073), (7, 2900634), (11, 1845858), (14, 1450317), (21, 966878), (22, 922929), (33, 615286), (42, 483439), (66, 307643), (71, 285978), (77, 263694), (142, 142989), (154, 131847), (213, 95326), (231, 87898), (426, 47663), (462, 43949), (497, 40854), (619, 32802), (781, 25998), (994, 20427), (1238, 16401), (1491, 13618), (1562, 12999), (1857, 10934), (2343, 8666), (2982, 6809), (3714, 5467), (4333, 4686)]