21671540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98507}}^1$

素因数の和:98527

約数の個数: 24

約数和(自身を含む): 49648032

約数和(自身を除く): 27976492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98507, 197014, 394028, 492535, 985070, 1083577, 1970140, 2167154, 4334308, 5417885, 10835770, 21671540]

約数ペア:

[(1, 21671540), (2, 10835770), (4, 5417885), (5, 4334308), (10, 2167154), (11, 1970140), (20, 1083577), (22, 985070), (44, 492535), (55, 394028), (110, 197014), (220, 98507)]