20813646

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{495563}}^1$

素因数の和:495575

約数の個数: 16

約数和(自身を含む): 47574144

約数和(自身を除く): 26760498

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 495563, 991126, 1486689, 2973378, 3468941, 6937882, 10406823, 20813646]

約数ペア:

[(1, 20813646), (2, 10406823), (3, 6937882), (6, 3468941), (7, 2973378), (14, 1486689), (21, 991126), (42, 495563)]