21470980

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2803}}^1$

素因数の和:3195

約数の個数: 24

約数和(自身を含む): 45222912

約数和(自身を除く): 23751932

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 2803, 3830, 5606, 7660, 11212, 14015, 28030, 56060, 1073549, 2147098, 4294196, 5367745, 10735490, 21470980]

約数ペア:

[(1, 21470980), (2, 10735490), (4, 5367745), (5, 4294196), (10, 2147098), (20, 1073549), (383, 56060), (766, 28030), (1532, 14015), (1915, 11212), (2803, 7660), (3830, 5606)]