21354310

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16301}}^1$

素因数の和:16439

約数の個数: 16

約数和(自身を含む): 38733552

約数和(自身を除く): 17379242

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 16301, 32602, 81505, 163010, 2135431, 4270862, 10677155, 21354310]

約数ペア:

[(1, 21354310), (2, 10677155), (5, 4270862), (10, 2135431), (131, 163010), (262, 81505), (655, 32602), (1310, 16301)]