21393296

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{6719}}^1$

素因数の和:6926

約数の個数: 20

約数和(自身を含む): 41664000

約数和(自身を除く): 20270704

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 6719, 13438, 26876, 53752, 107504, 1337081, 2674162, 5348324, 10696648, 21393296]

約数ペア:

[(1, 21393296), (2, 10696648), (4, 5348324), (8, 2674162), (16, 1337081), (199, 107504), (398, 53752), (796, 26876), (1592, 13438), (3184, 6719)]