21365678

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1\times {\mathrm{571}}^1$

素因数の和:979

約数の個数: 16

約数和(自身を含む): 32803056

約数和(自身を除く): 11437378

約数列:

[1, 2, 53, 106, 353, 571, 706, 1142, 18709, 30263, 37418, 60526, 201563, 403126, 10682839, 21365678]

約数ペア:

[(1, 21365678), (2, 10682839), (53, 403126), (106, 201563), (353, 60526), (571, 37418), (706, 30263), (1142, 18709)]