18860686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{13687}}^1$

素因数の和:13755

約数の個数: 16

約数和(自身を含む): 31044384

約数和(自身を除く): 12183698

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 13687, 27374, 177931, 355862, 725411, 1450822, 9430343, 18860686]

約数ペア:

[(1, 18860686), (2, 9430343), (13, 1450822), (26, 725411), (53, 355862), (106, 177931), (689, 27374), (1378, 13687)]