21059612

素因数分解:

$2^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{773}}^1$

素因数の和:930

約数の個数: 36

約数和(自身を含む): 43235640

約数和(自身を除く): 22176028

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 139, 196, 278, 556, 773, 973, 1546, 1946, 3092, 3892, 5411, 6811, 10822, 13622, 21644, 27244, 37877, 75754, 107447, 151508, 214894, 429788, 752129, 1504258, 3008516, 5264903, 10529806, 21059612]

約数ペア:

[(1, 21059612), (2, 10529806), (4, 5264903), (7, 3008516), (14, 1504258), (28, 752129), (49, 429788), (98, 214894), (139, 151508), (196, 107447), (278, 75754), (556, 37877), (773, 27244), (973, 21644), (1546, 13622), (1946, 10822), (3092, 6811), (3892, 5411)]