20945515

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2633}}^1$

素因数の和:2718

約数の個数: 16

約数和(自身を含む): 26424288

約数和(自身を除く): 5478773

約数列:

[1, 5, 37, 43, 185, 215, 1591, 2633, 7955, 13165, 97421, 113219, 487105, 566095, 4189103, 20945515]

約数ペア:

[(1, 20945515), (5, 4189103), (37, 566095), (43, 487105), (185, 113219), (215, 97421), (1591, 13165), (2633, 7955)]