21115677

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12073}}^1$

素因数の和:12140

約数の個数: 16

約数和(自身を含む): 31295808

約数和(自身を除く): 10180131

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12073, 36219, 132803, 398409, 639869, 1919607, 7038559, 21115677]

約数ペア:

[(1, 21115677), (3, 7038559), (11, 1919607), (33, 639869), (53, 398409), (159, 132803), (583, 36219), (1749, 12073)]