20428394

素因数分解:

$2^1\times 7^3\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 36220800

約数和(自身を除く): 15792406

約数列:

[1, 2, 7, 14, 49, 97, 98, 194, 307, 343, 614, 679, 686, 1358, 2149, 4298, 4753, 9506, 15043, 29779, 30086, 33271, 59558, 66542, 105301, 208453, 210602, 416906, 1459171, 2918342, 10214197, 20428394]

約数ペア:

[(1, 20428394), (2, 10214197), (7, 2918342), (14, 1459171), (49, 416906), (97, 210602), (98, 208453), (194, 105301), (307, 66542), (343, 59558), (614, 33271), (679, 30086), (686, 29779), (1358, 15043), (2149, 9506), (4298, 4753)]