21281886

素因数分解:

$2^1\times 3^3\times {\mathrm{229}}^1\times {\mathrm{1721}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 47527200

約数和(自身を除く): 26245314

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 229, 458, 687, 1374, 1721, 2061, 3442, 4122, 5163, 6183, 10326, 12366, 15489, 30978, 46467, 92934, 394109, 788218, 1182327, 2364654, 3546981, 7093962, 10640943, 21281886]

約数ペア:

[(1, 21281886), (2, 10640943), (3, 7093962), (6, 3546981), (9, 2364654), (18, 1182327), (27, 788218), (54, 394109), (229, 92934), (458, 46467), (687, 30978), (1374, 15489), (1721, 12366), (2061, 10326), (3442, 6183), (4122, 5163)]