21022503

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{1213}}^1$

素因数の和:1378

約数の個数: 16

約数和(自身を含む): 28844640

約数和(自身を除く): 7822137

約数列:

[1, 3, 53, 109, 159, 327, 1213, 3639, 5777, 17331, 64289, 132217, 192867, 396651, 7007501, 21022503]

約数ペア:

[(1, 21022503), (3, 7007501), (53, 396651), (109, 192867), (159, 132217), (327, 64289), (1213, 17331), (3639, 5777)]