21457712

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{58309}}^1$

素因数の和:58340

約数の個数: 20

約数和(自身を含む): 43382640

約数和(自身を除く): 21924928

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 58309, 116618, 233236, 466472, 932944, 1341107, 2682214, 5364428, 10728856, 21457712]

約数ペア:

[(1, 21457712), (2, 10728856), (4, 5364428), (8, 2682214), (16, 1341107), (23, 932944), (46, 466472), (92, 233236), (184, 116618), (368, 58309)]