21286540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96757}}^1$

素因数の和:96777

約数の個数: 24

約数和(自身を含む): 48766032

約数和(自身を除く): 27479492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96757, 193514, 387028, 483785, 967570, 1064327, 1935140, 2128654, 4257308, 5321635, 10643270, 21286540]

約数ペア:

[(1, 21286540), (2, 10643270), (4, 5321635), (5, 4257308), (10, 2128654), (11, 1935140), (20, 1064327), (22, 967570), (44, 483785), (55, 387028), (110, 193514), (220, 96757)]