20729752

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 39975120

約数和(自身を除く): 19245368

約数列:

[1, 2, 4, 8, 61, 107, 122, 214, 244, 397, 428, 488, 794, 856, 1588, 3176, 6527, 13054, 24217, 26108, 42479, 48434, 52216, 84958, 96868, 169916, 193736, 339832, 2591219, 5182438, 10364876, 20729752]

約数ペア:

[(1, 20729752), (2, 10364876), (4, 5182438), (8, 2591219), (61, 339832), (107, 193736), (122, 169916), (214, 96868), (244, 84958), (397, 52216), (428, 48434), (488, 42479), (794, 26108), (856, 24217), (1588, 13054), (3176, 6527)]