21495956

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{911}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 39989376

約数和(自身を除く): 18493420

約数列:

[1, 2, 4, 17, 34, 68, 347, 694, 911, 1388, 1822, 3644, 5899, 11798, 15487, 23596, 30974, 61948, 316117, 632234, 1264468, 5373989, 10747978, 21495956]

約数ペア:

[(1, 21495956), (2, 10747978), (4, 5373989), (17, 1264468), (34, 632234), (68, 316117), (347, 61948), (694, 30974), (911, 23596), (1388, 15487), (1822, 11798), (3644, 5899)]