81449858

素因数分解:

$2^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{3727}}^1$

素因数の和:3966

約数の個数: 24

約数和(自身を含む): 142797312

約数和(自身を除く): 61347454

約数列:

[1, 2, 7, 14, 49, 98, 223, 446, 1561, 3122, 3727, 7454, 10927, 21854, 26089, 52178, 182623, 365246, 831121, 1662242, 5817847, 11635694, 40724929, 81449858]

約数ペア:

[(1, 81449858), (2, 40724929), (7, 11635694), (14, 5817847), (49, 1662242), (98, 831121), (223, 365246), (446, 182623), (1561, 52178), (3122, 26089), (3727, 21854), (7454, 10927)]