21340275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25867}}^1$

素因数の和:25891

約数の個数: 24

約数和(自身を含む): 38491584

約数和(自身を除く): 17151309

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25867, 77601, 129335, 284537, 388005, 646675, 853611, 1422685, 1940025, 4268055, 7113425, 21340275]

約数ペア:

[(1, 21340275), (3, 7113425), (5, 4268055), (11, 1940025), (15, 1422685), (25, 853611), (33, 646675), (55, 388005), (75, 284537), (165, 129335), (275, 77601), (825, 25867)]