21821793

素因数分解:

$3^1\times 7^1\times {\mathrm{937}}^1\times {\mathrm{1109}}^1$

素因数の和:2056

約数の個数: 16

約数和(自身を含む): 33317760

約数和(自身を除く): 11495967

約数列:

[1, 3, 7, 21, 937, 1109, 2811, 3327, 6559, 7763, 19677, 23289, 1039133, 3117399, 7273931, 21821793]

約数ペア:

[(1, 21821793), (3, 7273931), (7, 3117399), (21, 1039133), (937, 23289), (1109, 19677), (2811, 7763), (3327, 6559)]