20419465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21839}}^1$

素因数の和:21872

約数の個数: 16

約数和(自身を含む): 28304640

約数和(自身を除く): 7885175

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 21839, 109195, 240229, 371263, 1201145, 1856315, 4083893, 20419465]

約数ペア:

[(1, 20419465), (5, 4083893), (11, 1856315), (17, 1201145), (55, 371263), (85, 240229), (187, 109195), (935, 21839)]