21067245

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12653}}^1$

素因数の和:12701

約数の個数: 24

約数和(自身を含む): 37506456

約数和(自身を除く): 16439211

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12653, 37959, 63265, 113877, 189795, 468161, 569385, 1404483, 2340805, 4213449, 7022415, 21067245]

約数ペア:

[(1, 21067245), (3, 7022415), (5, 4213449), (9, 2340805), (15, 1404483), (37, 569385), (45, 468161), (111, 189795), (185, 113877), (333, 63265), (555, 37959), (1665, 12653)]