18478988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3853}}^1$

素因数の和:3977

約数の個数: 24

約数和(自身を含む): 35610960

約数和(自身を除く): 17131972

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 3853, 4796, 7706, 15412, 42383, 84766, 169532, 419977, 839954, 1679908, 4619747, 9239494, 18478988]

約数ペア:

[(1, 18478988), (2, 9239494), (4, 4619747), (11, 1679908), (22, 839954), (44, 419977), (109, 169532), (218, 84766), (436, 42383), (1199, 15412), (2398, 7706), (3853, 4796)]