18909205

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{9157}}^1$

素因数の和:9228

約数の個数: 16

約数和(自身を含む): 26375040

約数和(自身を除く): 7465835

約数列:

[1, 5, 7, 35, 59, 295, 413, 2065, 9157, 45785, 64099, 320495, 540263, 2701315, 3781841, 18909205]

約数ペア:

[(1, 18909205), (5, 3781841), (7, 2701315), (35, 540263), (59, 320495), (295, 64099), (413, 45785), (2065, 9157)]