21781474

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{76159}}^1$

素因数の和:76185

約数の個数: 16

約数和(自身を含む): 38384640

約数和(自身を除く): 16603166

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 76159, 152318, 837749, 990067, 1675498, 1980134, 10890737, 21781474]

約数ペア:

[(1, 21781474), (2, 10890737), (11, 1980134), (13, 1675498), (22, 990067), (26, 837749), (143, 152318), (286, 76159)]