19725559

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7207}}^1$

素因数の和:7254

約数の個数: 16

約数和(自身を含む): 24910848

約数和(自身を除く): 5185289

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7207, 50449, 122519, 165761, 857633, 1160327, 2817937, 19725559]

約数ペア:

[(1, 19725559), (7, 2817937), (17, 1160327), (23, 857633), (119, 165761), (161, 122519), (391, 50449), (2737, 7207)]