21159556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{1427}}^1$

素因数の和:1779

約数の個数: 24

約数和(自身を含む): 40543776

約数和(自身を除く): 19384220

約数列:

[1, 2, 4, 11, 22, 44, 337, 674, 1348, 1427, 2854, 3707, 5708, 7414, 14828, 15697, 31394, 62788, 480899, 961798, 1923596, 5289889, 10579778, 21159556]

約数ペア:

[(1, 21159556), (2, 10579778), (4, 5289889), (11, 1923596), (22, 961798), (44, 480899), (337, 62788), (674, 31394), (1348, 15697), (1427, 14828), (2854, 7414), (3707, 5708)]