21869210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198811}}^1$

素因数の和:198829

約数の個数: 16

約数和(自身を含む): 42943392

約数和(自身を除く): 21074182

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198811, 397622, 994055, 1988110, 2186921, 4373842, 10934605, 21869210]

約数ペア:

[(1, 21869210), (2, 10934605), (5, 4373842), (10, 2186921), (11, 1988110), (22, 994055), (55, 397622), (110, 198811)]