21697310

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{24379}}^1$

素因数の和:24475

約数の個数: 16

約数和(自身を含む): 39495600

約数和(自身を除く): 17798290

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 24379, 48758, 121895, 243790, 2169731, 4339462, 10848655, 21697310]

約数ペア:

[(1, 21697310), (2, 10848655), (5, 4339462), (10, 2169731), (89, 243790), (178, 121895), (445, 48758), (890, 24379)]