21791756

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2693}}^1$

素因数の和:2738

約数の個数: 36

約数和(自身を含む): 46315248

約数和(自身を除く): 24523492

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2693, 4046, 5386, 8092, 10772, 18851, 37702, 45781, 75404, 91562, 183124, 320467, 640934, 778277, 1281868, 1556554, 3113108, 5447939, 10895878, 21791756]

約数ペア:

[(1, 21791756), (2, 10895878), (4, 5447939), (7, 3113108), (14, 1556554), (17, 1281868), (28, 778277), (34, 640934), (68, 320467), (119, 183124), (238, 91562), (289, 75404), (476, 45781), (578, 37702), (1156, 18851), (2023, 10772), (2693, 8092), (4046, 5386)]