21337394

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{9221}}^1$

素因数の和:9325

約数の個数: 16

約数和(自身を含む): 34859160

約数和(自身を除く): 13521766

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 9221, 18442, 119873, 239746, 820669, 1641338, 10668697, 21337394]

約数ペア:

[(1, 21337394), (2, 10668697), (13, 1641338), (26, 820669), (89, 239746), (178, 119873), (1157, 18442), (2314, 9221)]