17987739

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7079}}^1$

素因数の和:7111

約数の個数: 24

約数和(自身を含む): 30132480

約数和(自身を除く): 12144741

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7079, 21237, 49553, 77869, 148659, 233607, 545083, 856559, 1635249, 2569677, 5995913, 17987739]

約数ペア:

[(1, 17987739), (3, 5995913), (7, 2569677), (11, 1635249), (21, 856559), (33, 545083), (77, 233607), (121, 148659), (231, 77869), (363, 49553), (847, 21237), (2541, 7079)]