21153968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120193}}^1$

素因数の和:120212

約数の個数: 20

約数和(自身を含む): 44712168

約数和(自身を除く): 23558200

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120193, 240386, 480772, 961544, 1322123, 1923088, 2644246, 5288492, 10576984, 21153968]

約数ペア:

[(1, 21153968), (2, 10576984), (4, 5288492), (8, 2644246), (11, 1923088), (16, 1322123), (22, 961544), (44, 480772), (88, 240386), (176, 120193)]