21979996

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1381}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 40398624

約数和(自身を除く): 18418628

約数列:

[1, 2, 4, 23, 46, 92, 173, 346, 692, 1381, 2762, 3979, 5524, 7958, 15916, 31763, 63526, 127052, 238913, 477826, 955652, 5494999, 10989998, 21979996]

約数ペア:

[(1, 21979996), (2, 10989998), (4, 5494999), (23, 955652), (46, 477826), (92, 238913), (173, 127052), (346, 63526), (692, 31763), (1381, 15916), (2762, 7958), (3979, 5524)]