21091313890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{509329}}^1$

素因数の和:509478

約数の個数: 32

約数和(自身を含む): 39275454960

約数和(自身を除く): 18184141070

約数列:

[1, 2, 5, 10, 41, 82, 101, 202, 205, 410, 505, 1010, 4141, 8282, 20705, 41410, 509329, 1018658, 2546645, 5093290, 20882489, 41764978, 51442229, 102884458, 104412445, 208824890, 257211145, 514422290, 2109131389, 4218262778, 10545656945, 21091313890]

約数ペア:

[(1, 21091313890), (2, 10545656945), (5, 4218262778), (10, 2109131389), (41, 514422290), (82, 257211145), (101, 208824890), (202, 104412445), (205, 102884458), (410, 51442229), (505, 41764978), (1010, 20882489), (4141, 5093290), (8282, 2546645), (20705, 1018658), (41410, 509329)]