28017921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{2399}}^1$

素因数の和:2648

約数の個数: 16

約数和(自身を含む): 39744000

約数和(自身を除く): 11726079

約数列:

[1, 3, 17, 51, 229, 687, 2399, 3893, 7197, 11679, 40783, 122349, 549371, 1648113, 9339307, 28017921]

約数ペア:

[(1, 28017921), (3, 9339307), (17, 1648113), (51, 549371), (229, 122349), (687, 40783), (2399, 11679), (3893, 7197)]