20747356

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4973}}^1$

素因数の和:5133

約数の個数: 24

約数和(自身を含む): 41781600

約数和(自身を除く): 21034244

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 4973, 9946, 19892, 34811, 69622, 139244, 740977, 1481954, 2963908, 5186839, 10373678, 20747356]

約数ペア:

[(1, 20747356), (2, 10373678), (4, 5186839), (7, 2963908), (14, 1481954), (28, 740977), (149, 139244), (298, 69622), (596, 34811), (1043, 19892), (2086, 9946), (4172, 4973)]