391496919

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 612282240

約数和(自身を除く): 220785321

約数列:

[1, 3, 11, 19, 33, 57, 59, 177, 209, 361, 557, 627, 649, 1083, 1121, 1671, 1947, 3363, 3971, 6127, 10583, 11913, 12331, 18381, 21299, 31749, 32863, 36993, 63897, 98589, 116413, 201077, 234289, 349239, 361493, 603231, 624397, 702867, 1084479, 1873191, 2211847, 6635541, 6868367, 11863543, 20605101, 35590629, 130498973, 391496919]

約数ペア:

[(1, 391496919), (3, 130498973), (11, 35590629), (19, 20605101), (33, 11863543), (57, 6868367), (59, 6635541), (177, 2211847), (209, 1873191), (361, 1084479), (557, 702867), (627, 624397), (649, 603231), (1083, 361493), (1121, 349239), (1671, 234289), (1947, 201077), (3363, 116413), (3971, 98589), (6127, 63897), (10583, 36993), (11913, 32863), (12331, 31749), (18381, 21299)]