20656485

素因数分解:

$3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2887}}^1$

素因数の和:2954

約数の個数: 32

約数和(自身を含む): 37428480

約数和(自身を除く): 16771995

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 135, 159, 265, 477, 795, 1431, 2385, 2887, 7155, 8661, 14435, 25983, 43305, 77949, 129915, 153011, 389745, 459033, 765055, 1377099, 2295165, 4131297, 6885495, 20656485]

約数ペア:

[(1, 20656485), (3, 6885495), (5, 4131297), (9, 2295165), (15, 1377099), (27, 765055), (45, 459033), (53, 389745), (135, 153011), (159, 129915), (265, 77949), (477, 43305), (795, 25983), (1431, 14435), (2385, 8661), (2887, 7155)]