213213

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:105

約数の個数: 32

約数和(自身を含む): 387072

約数和(自身を除く): 173859

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 71, 77, 91, 143, 213, 231, 273, 429, 497, 781, 923, 1001, 1491, 2343, 2769, 3003, 5467, 6461, 10153, 16401, 19383, 30459, 71071, 213213]

約数ペア:

[(1, 213213), (3, 71071), (7, 30459), (11, 19383), (13, 16401), (21, 10153), (33, 6461), (39, 5467), (71, 3003), (77, 2769), (91, 2343), (143, 1491), (213, 1001), (231, 923), (273, 781), (429, 497)]