21649869

素因数分解:

$3^3\times {\mathrm{607}}^1\times {\mathrm{1321}}^1$

素因数の和:1937

約数の個数: 16

約数和(自身を含む): 32151040

約数和(自身を除く): 10501171

約数列:

[1, 3, 9, 27, 607, 1321, 1821, 3963, 5463, 11889, 16389, 35667, 801847, 2405541, 7216623, 21649869]

約数ペア:

[(1, 21649869), (3, 7216623), (9, 2405541), (27, 801847), (607, 35667), (1321, 16389), (1821, 11889), (3963, 5463)]