20291218

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{929}}^1$

素因数の和:1161

約数の個数: 16

約数和(自身を含む): 31114080

約数和(自身を除く): 10822862

約数列:

[1, 2, 67, 134, 163, 326, 929, 1858, 10921, 21842, 62243, 124486, 151427, 302854, 10145609, 20291218]

約数ペア:

[(1, 20291218), (2, 10145609), (67, 302854), (134, 151427), (163, 124486), (326, 62243), (929, 21842), (1858, 10921)]