21995270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4877}}^1$

素因数の和:4936

約数の個数: 32

約数和(自身を含む): 44253216

約数和(自身を除く): 22257946

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 4877, 9754, 24385, 48770, 53647, 107294, 199957, 268235, 399914, 536470, 999785, 1999570, 2199527, 4399054, 10997635, 21995270]

約数ペア:

[(1, 21995270), (2, 10997635), (5, 4399054), (10, 2199527), (11, 1999570), (22, 999785), (41, 536470), (55, 399914), (82, 268235), (110, 199957), (205, 107294), (410, 53647), (451, 48770), (902, 24385), (2255, 9754), (4510, 4877)]