21063537

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{70921}}^1$

素因数の和:70941

約数の個数: 16

約数和(自身を含む): 34042560

約数和(自身を除く): 12979023

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 70921, 212763, 638289, 780131, 1914867, 2340393, 7021179, 21063537]

約数ペア:

[(1, 21063537), (3, 7021179), (9, 2340393), (11, 1914867), (27, 780131), (33, 638289), (99, 212763), (297, 70921)]