21904818

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3847}}^1$

素因数の和:3938

約数の個数: 32

約数和(自身を含む): 47838336

約数和(自身を除く): 25933518

約数列:

[1, 2, 3, 6, 13, 26, 39, 73, 78, 146, 219, 438, 949, 1898, 2847, 3847, 5694, 7694, 11541, 23082, 50011, 100022, 150033, 280831, 300066, 561662, 842493, 1684986, 3650803, 7301606, 10952409, 21904818]

約数ペア:

[(1, 21904818), (2, 10952409), (3, 7301606), (6, 3650803), (13, 1684986), (26, 842493), (39, 561662), (73, 300066), (78, 280831), (146, 150033), (219, 100022), (438, 50011), (949, 23082), (1898, 11541), (2847, 7694), (3847, 5694)]