21782268

素因数分解:

$2^2\times 3^2\times {\mathrm{643}}^1\times {\mathrm{941}}^1$

素因数の和:1594

約数の個数: 36

約数和(自身を含む): 55204968

約数和(自身を除く): 33422700

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 643, 941, 1286, 1882, 1929, 2572, 2823, 3764, 3858, 5646, 5787, 7716, 8469, 11292, 11574, 16938, 23148, 33876, 605063, 1210126, 1815189, 2420252, 3630378, 5445567, 7260756, 10891134, 21782268]

約数ペア:

[(1, 21782268), (2, 10891134), (3, 7260756), (4, 5445567), (6, 3630378), (9, 2420252), (12, 1815189), (18, 1210126), (36, 605063), (643, 33876), (941, 23148), (1286, 16938), (1882, 11574), (1929, 11292), (2572, 8469), (2823, 7716), (3764, 5787), (3858, 5646)]