21791462

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1993}}^1$

素因数の和:2084

約数の個数: 32

約数和(自身を含む): 41347584

約数和(自身を除く): 19556122

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 1993, 3986, 5467, 10934, 13951, 21923, 27902, 43846, 141503, 153461, 283006, 306922, 990521, 1556533, 1981042, 3113066, 10895731, 21791462]

約数ペア:

[(1, 21791462), (2, 10895731), (7, 3113066), (11, 1981042), (14, 1556533), (22, 990521), (71, 306922), (77, 283006), (142, 153461), (154, 141503), (497, 43846), (781, 27902), (994, 21923), (1562, 13951), (1993, 10934), (3986, 5467)]