20489896

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21523}}^1$

素因数の和:21553

約数の個数: 32

約数和(自身を含む): 46491840

約数和(自身を除く): 26001944

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 21523, 43046, 86092, 150661, 172184, 301322, 365891, 602644, 731782, 1205288, 1463564, 2561237, 2927128, 5122474, 10244948, 20489896]

約数ペア:

[(1, 20489896), (2, 10244948), (4, 5122474), (7, 2927128), (8, 2561237), (14, 1463564), (17, 1205288), (28, 731782), (34, 602644), (56, 365891), (68, 301322), (119, 172184), (136, 150661), (238, 86092), (476, 43046), (952, 21523)]