20429913

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2957}}^1$

素因数の和:3021

約数の個数: 24

約数和(自身を含む): 32372352

約数和(自身を除く): 11942439

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 2957, 6909, 8871, 20699, 62097, 138979, 144893, 416937, 434679, 972853, 2918559, 6809971, 20429913]

約数ペア:

[(1, 20429913), (3, 6809971), (7, 2918559), (21, 972853), (47, 434679), (49, 416937), (141, 144893), (147, 138979), (329, 62097), (987, 20699), (2303, 8871), (2957, 6909)]