20538004

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1231}}^1$

素因数の和:1375

約数の個数: 24

約数和(自身を含む): 37186688

約数和(自身を除く): 16648684

約数列:

[1, 2, 4, 43, 86, 97, 172, 194, 388, 1231, 2462, 4171, 4924, 8342, 16684, 52933, 105866, 119407, 211732, 238814, 477628, 5134501, 10269002, 20538004]

約数ペア:

[(1, 20538004), (2, 10269002), (4, 5134501), (43, 477628), (86, 238814), (97, 211732), (172, 119407), (194, 105866), (388, 52933), (1231, 16684), (2462, 8342), (4171, 4924)]