21086392

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155047}}^1$

素因数の和:155070

約数の個数: 16

約数和(自身を含む): 41862960

約数和(自身を除く): 20776568

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155047, 310094, 620188, 1240376, 2635799, 5271598, 10543196, 21086392]

約数ペア:

[(1, 21086392), (2, 10543196), (4, 5271598), (8, 2635799), (17, 1240376), (34, 620188), (68, 310094), (136, 155047)]