21000539967

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3209}}^1\times {\mathrm{3251}}^1$

素因数の和:6535

約数の個数: 32

約数和(自身を含む): 31066225920

約数和(自身を除く): 10065685953

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 3209, 3251, 9627, 9753, 35299, 35761, 105897, 107283, 195749, 198311, 587247, 594933, 2153239, 2181421, 6459717, 6544263, 10432459, 31297377, 114757049, 344271147, 636379999, 1909139997, 7000179989, 21000539967]

約数ペア:

[(1, 21000539967), (3, 7000179989), (11, 1909139997), (33, 636379999), (61, 344271147), (183, 114757049), (671, 31297377), (2013, 10432459), (3209, 6544263), (3251, 6459717), (9627, 2181421), (9753, 2153239), (35299, 594933), (35761, 587247), (105897, 198311), (107283, 195749)]