21519376

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{4297}}^1$

素因数の和:4618

約数の個数: 20

約数和(自身を含む): 41836732

約数和(自身を除く): 20317356

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 4297, 5008, 8594, 17188, 34376, 68752, 1344961, 2689922, 5379844, 10759688, 21519376]

約数ペア:

[(1, 21519376), (2, 10759688), (4, 5379844), (8, 2689922), (16, 1344961), (313, 68752), (626, 34376), (1252, 17188), (2504, 8594), (4297, 5008)]