20288913

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3889}}^1$

素因数の和:3976

約数の個数: 16

約数和(自身を含む): 28381440

約数和(自身を除く): 8092527

約数列:

[1, 3, 37, 47, 111, 141, 1739, 3889, 5217, 11667, 143893, 182783, 431679, 548349, 6762971, 20288913]

約数ペア:

[(1, 20288913), (3, 6762971), (37, 548349), (47, 431679), (111, 182783), (141, 143893), (1739, 11667), (3889, 5217)]