18407851

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 23459072

約数和(自身を除く): 5051221

約数列:

[1, 7, 11, 77, 103, 121, 211, 721, 847, 1133, 1477, 2321, 7931, 12463, 16247, 21733, 25531, 87241, 152131, 178717, 239063, 1673441, 2629693, 18407851]

約数ペア:

[(1, 18407851), (7, 2629693), (11, 1673441), (77, 239063), (103, 178717), (121, 152131), (211, 87241), (721, 25531), (847, 21733), (1133, 16247), (1477, 12463), (2321, 7931)]