21105918

素因数分解:

$2^1\times 3^2\times {\mathrm{601}}^1\times {\mathrm{1951}}^1$

素因数の和:2560

約数の個数: 24

約数和(自身を含む): 45829056

約数和(自身を除く): 24723138

約数列:

[1, 2, 3, 6, 9, 18, 601, 1202, 1803, 1951, 3606, 3902, 5409, 5853, 10818, 11706, 17559, 35118, 1172551, 2345102, 3517653, 7035306, 10552959, 21105918]

約数ペア:

[(1, 21105918), (2, 10552959), (3, 7035306), (6, 3517653), (9, 2345102), (18, 1172551), (601, 35118), (1202, 17559), (1803, 11706), (1951, 10818), (3606, 5853), (3902, 5409)]