20211988891

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1669}}^1\times {\mathrm{37493}}^1$

素因数の和:39198

約数の個数: 16

約数和(自身を含む): 22541392800

約数和(自身を除く): 2329403909

約数列:

[1, 17, 19, 323, 1669, 28373, 31711, 37493, 539087, 637381, 712367, 12110239, 62575817, 1063788889, 1188940523, 20211988891]

約数ペア:

[(1, 20211988891), (17, 1188940523), (19, 1063788889), (323, 62575817), (1669, 12110239), (28373, 712367), (31711, 637381), (37493, 539087)]