21205239

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37799}}^1$

素因数の和:37830

約数の個数: 16

約数和(自身を含む): 32659200

約数和(自身を除く): 11453961

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37799, 113397, 415789, 642583, 1247367, 1927749, 7068413, 21205239]

約数ペア:

[(1, 21205239), (3, 7068413), (11, 1927749), (17, 1247367), (33, 642583), (51, 415789), (187, 113397), (561, 37799)]