18785668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{9929}}^1$

素因数の和:9987

約数の個数: 24

約数和(自身を含む): 36701280

約数和(自身を除く): 17915612

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 9929, 19858, 39716, 109219, 218438, 426947, 436876, 853894, 1707788, 4696417, 9392834, 18785668]

約数ペア:

[(1, 18785668), (2, 9392834), (4, 4696417), (11, 1707788), (22, 853894), (43, 436876), (44, 426947), (86, 218438), (172, 109219), (473, 39716), (946, 19858), (1892, 9929)]