21218085

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22453}}^1$

素因数の和:22474

約数の個数: 32

約数和(自身を含む): 43111680

約数和(自身を除く): 21893595

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22453, 67359, 112265, 157171, 202077, 336795, 471513, 606231, 785855, 1010385, 1414539, 2357565, 3031155, 4243617, 7072695, 21218085]

約数ペア:

[(1, 21218085), (3, 7072695), (5, 4243617), (7, 3031155), (9, 2357565), (15, 1414539), (21, 1010385), (27, 785855), (35, 606231), (45, 471513), (63, 336795), (105, 202077), (135, 157171), (189, 112265), (315, 67359), (945, 22453)]