21984919

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2843}}^1$

素因数の和:2910

約数の個数: 16

約数和(自身を含む): 25937280

約数和(自身を除く): 3952361

約数列:

[1, 11, 19, 37, 209, 407, 703, 2843, 7733, 31273, 54017, 105191, 594187, 1157101, 1998629, 21984919]

約数ペア:

[(1, 21984919), (11, 1998629), (19, 1157101), (37, 594187), (209, 105191), (407, 54017), (703, 31273), (2843, 7733)]