20485816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11587}}^1$

素因数の和:11623

約数の個数: 32

約数和(自身を含む): 43802640

約数和(自身を除く): 23316824

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11587, 23174, 46348, 92696, 150631, 196979, 301262, 393958, 602524, 787916, 1205048, 1575832, 2560727, 5121454, 10242908, 20485816]

約数ペア:

[(1, 20485816), (2, 10242908), (4, 5121454), (8, 2560727), (13, 1575832), (17, 1205048), (26, 787916), (34, 602524), (52, 393958), (68, 301262), (104, 196979), (136, 150631), (221, 92696), (442, 46348), (884, 23174), (1768, 11587)]