21081749

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1160

約数の個数: 16

約数和(自身を含む): 23908080

約数和(自身を除く): 2826331

約数列:

[1, 13, 37, 41, 481, 533, 1069, 1517, 13897, 19721, 39553, 43829, 514189, 569777, 1621673, 21081749]

約数ペア:

[(1, 21081749), (13, 1621673), (37, 569777), (41, 514189), (481, 43829), (533, 39553), (1069, 19721), (1517, 13897)]