21325540

素因数分解:

$2^2\times 5^1\times {\mathrm{719}}^1\times {\mathrm{1483}}^1$

素因数の和:2211

約数の個数: 24

約数和(自身を含む): 44876160

約数和(自身を除く): 23550620

約数列:

[1, 2, 4, 5, 10, 20, 719, 1438, 1483, 2876, 2966, 3595, 5932, 7190, 7415, 14380, 14830, 29660, 1066277, 2132554, 4265108, 5331385, 10662770, 21325540]

約数ペア:

[(1, 21325540), (2, 10662770), (4, 5331385), (5, 4265108), (10, 2132554), (20, 1066277), (719, 29660), (1438, 14830), (1483, 14380), (2876, 7415), (2966, 7190), (3595, 5932)]