18881982

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{541}}^1$

素因数の和:833

約数の個数: 48

約数和(自身を含む): 47010912

約数和(自身を除く): 28128930

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 277, 541, 554, 831, 1082, 1623, 1662, 1939, 2493, 3246, 3787, 3878, 4869, 4986, 5817, 7574, 9738, 11361, 11634, 17451, 22722, 34083, 34902, 68166, 149857, 299714, 449571, 899142, 1048999, 1348713, 2097998, 2697426, 3146997, 6293994, 9440991, 18881982]

約数ペア:

[(1, 18881982), (2, 9440991), (3, 6293994), (6, 3146997), (7, 2697426), (9, 2097998), (14, 1348713), (18, 1048999), (21, 899142), (42, 449571), (63, 299714), (126, 149857), (277, 68166), (541, 34902), (554, 34083), (831, 22722), (1082, 17451), (1623, 11634), (1662, 11361), (1939, 9738), (2493, 7574), (3246, 5817), (3787, 4986), (3878, 4869)]