990308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 1923264

約数和(自身を除く): 932956

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 317, 634, 781, 1268, 1562, 3124, 3487, 6974, 13948, 22507, 45014, 90028, 247577, 495154, 990308]

約数ペア:

[(1, 990308), (2, 495154), (4, 247577), (11, 90028), (22, 45014), (44, 22507), (71, 13948), (142, 6974), (284, 3487), (317, 3124), (634, 1562), (781, 1268)]