28215405

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7207}}^1$

素因数の和:7250

約数の個数: 32

約数和(自身を含む): 51897600

約数和(自身を除く): 23682195

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 7207, 21621, 36035, 64863, 108105, 194589, 209003, 324315, 627009, 972945, 1045015, 1881027, 3135045, 5643081, 9405135, 28215405]

約数ペア:

[(1, 28215405), (3, 9405135), (5, 5643081), (9, 3135045), (15, 1881027), (27, 1045015), (29, 972945), (45, 627009), (87, 324315), (135, 209003), (145, 194589), (261, 108105), (435, 64863), (783, 36035), (1305, 21621), (3915, 7207)]