211212639

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{193951}}^1$

素因数の和:193979

約数の個数: 18

約数和(自身を含む): 335343008

約数和(自身を除く): 124130369

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 193951, 581853, 1745559, 2133461, 6400383, 19201149, 23468071, 70404213, 211212639]

約数ペア:

[(1, 211212639), (3, 70404213), (9, 23468071), (11, 19201149), (33, 6400383), (99, 2133461), (121, 1745559), (363, 581853), (1089, 193951)]