389661503

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{223}}^1\times {\mathrm{2063}}^1$

素因数の和:2315

約数の個数: 24

約数和(自身を含む): 491925504

約数和(自身を除く): 102264001

約数列:

[1, 7, 11, 77, 121, 223, 847, 1561, 2063, 2453, 14441, 17171, 22693, 26983, 158851, 188881, 249623, 460049, 1747361, 3220343, 5060539, 35423773, 55665929, 389661503]

約数ペア:

[(1, 389661503), (7, 55665929), (11, 35423773), (77, 5060539), (121, 3220343), (223, 1747361), (847, 460049), (1561, 249623), (2063, 188881), (2453, 158851), (14441, 26983), (17171, 22693)]