21039931

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1907}}^1$

素因数の和:1994

約数の個数: 16

約数和(自身を含む): 24727680

約数和(自身を除く): 3687749

約数列:

[1, 11, 17, 59, 187, 649, 1003, 1907, 11033, 20977, 32419, 112513, 356609, 1237643, 1912721, 21039931]

約数ペア:

[(1, 21039931), (11, 1912721), (17, 1237643), (59, 356609), (187, 112513), (649, 32419), (1003, 20977), (1907, 11033)]