20862655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 29533248

約数和(自身を除く): 8670593

約数列:

[1, 5, 11, 17, 53, 55, 85, 187, 265, 421, 583, 901, 935, 2105, 2915, 4505, 4631, 7157, 9911, 22313, 23155, 35785, 49555, 78727, 111565, 245443, 379321, 393635, 1227215, 1896605, 4172531, 20862655]

約数ペア:

[(1, 20862655), (5, 4172531), (11, 1896605), (17, 1227215), (53, 393635), (55, 379321), (85, 245443), (187, 111565), (265, 78727), (421, 49555), (583, 35785), (901, 23155), (935, 22313), (2105, 9911), (2915, 7157), (4505, 4631)]