21163180

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{1409}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 44533440

約数和(自身を除く): 23370260

約数列:

[1, 2, 4, 5, 10, 20, 751, 1409, 1502, 2818, 3004, 3755, 5636, 7045, 7510, 14090, 15020, 28180, 1058159, 2116318, 4232636, 5290795, 10581590, 21163180]

約数ペア:

[(1, 21163180), (2, 10581590), (4, 5290795), (5, 4232636), (10, 2116318), (20, 1058159), (751, 28180), (1409, 15020), (1502, 14090), (2818, 7510), (3004, 7045), (3755, 5636)]