21100420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95911}}^1$

素因数の和:95931

約数の個数: 24

約数和(自身を含む): 48339648

約数和(自身を除く): 27239228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95911, 191822, 383644, 479555, 959110, 1055021, 1918220, 2110042, 4220084, 5275105, 10550210, 21100420]

約数ペア:

[(1, 21100420), (2, 10550210), (4, 5275105), (5, 4220084), (10, 2110042), (11, 1918220), (20, 1055021), (22, 959110), (44, 479555), (55, 383644), (110, 191822), (220, 95911)]