21870670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1013}}^1$

素因数の和:1164

約数の個数: 32

約数和(自身を含む): 42052608

約数和(自身を除く): 20181938

約数列:

[1, 2, 5, 10, 17, 34, 85, 127, 170, 254, 635, 1013, 1270, 2026, 2159, 4318, 5065, 10130, 10795, 17221, 21590, 34442, 86105, 128651, 172210, 257302, 643255, 1286510, 2187067, 4374134, 10935335, 21870670]

約数ペア:

[(1, 21870670), (2, 10935335), (5, 4374134), (10, 2187067), (17, 1286510), (34, 643255), (85, 257302), (127, 172210), (170, 128651), (254, 86105), (635, 34442), (1013, 21590), (1270, 17221), (2026, 10795), (2159, 10130), (4318, 5065)]