20813478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{495559}}^1$

素因数の和:495571

約数の個数: 16

約数和(自身を含む): 47573760

約数和(自身を除く): 26760282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 495559, 991118, 1486677, 2973354, 3468913, 6937826, 10406739, 20813478]

約数ペア:

[(1, 20813478), (2, 10406739), (3, 6937826), (6, 3468913), (7, 2973354), (14, 1486677), (21, 991118), (42, 495559)]