21090686

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{2521}}^1$

素因数の和:2659

約数の個数: 16

約数和(自身を含む): 32685120

約数和(自身を除く): 11594434

約数列:

[1, 2, 47, 89, 94, 178, 2521, 4183, 5042, 8366, 118487, 224369, 236974, 448738, 10545343, 21090686]

約数ペア:

[(1, 21090686), (2, 10545343), (47, 448738), (89, 236974), (94, 224369), (178, 118487), (2521, 8366), (4183, 5042)]