18711376

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{10729}}^1$

素因数の和:10846

約数の個数: 20

約数和(自身を含む): 36589300

約数和(自身を除く): 17877924

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 10729, 21458, 42916, 85832, 171664, 1169461, 2338922, 4677844, 9355688, 18711376]

約数ペア:

[(1, 18711376), (2, 9355688), (4, 4677844), (8, 2338922), (16, 1169461), (109, 171664), (218, 85832), (436, 42916), (872, 21458), (1744, 10729)]