21167350420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{200183}}^1$

素因数の和:200520

約数の個数: 48

約数和(自身を含む): 47217800448

約数和(自身を除く): 26050450028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 311, 340, 622, 1244, 1555, 3110, 5287, 6220, 10574, 21148, 26435, 52870, 105740, 200183, 400366, 800732, 1000915, 2001830, 3403111, 4003660, 6806222, 13612444, 17015555, 34031110, 62256913, 68062220, 124513826, 249027652, 311284565, 622569130, 1058367521, 1245138260, 2116735042, 4233470084, 5291837605, 10583675210, 21167350420]

約数ペア:

[(1, 21167350420), (2, 10583675210), (4, 5291837605), (5, 4233470084), (10, 2116735042), (17, 1245138260), (20, 1058367521), (34, 622569130), (68, 311284565), (85, 249027652), (170, 124513826), (311, 68062220), (340, 62256913), (622, 34031110), (1244, 17015555), (1555, 13612444), (3110, 6806222), (5287, 4003660), (6220, 3403111), (10574, 2001830), (21148, 1000915), (26435, 800732), (52870, 400366), (105740, 200183)]