20329808

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11657}}^1$

素因数の和:11774

約数の個数: 20

約数和(自身を含む): 39753780

約数和(自身を除く): 19423972

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11657, 23314, 46628, 93256, 186512, 1270613, 2541226, 5082452, 10164904, 20329808]

約数ペア:

[(1, 20329808), (2, 10164904), (4, 5082452), (8, 2541226), (16, 1270613), (109, 186512), (218, 93256), (436, 46628), (872, 23314), (1744, 11657)]