21224210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1571}}^1$

素因数の和:1778

約数の個数: 32

約数和(自身を含む): 43915392

約数和(自身を除く): 22691182

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 193, 386, 965, 1351, 1571, 1930, 2702, 3142, 6755, 7855, 10997, 13510, 15710, 21994, 54985, 109970, 303203, 606406, 1516015, 2122421, 3032030, 4244842, 10612105, 21224210]

約数ペア:

[(1, 21224210), (2, 10612105), (5, 4244842), (7, 3032030), (10, 2122421), (14, 1516015), (35, 606406), (70, 303203), (193, 109970), (386, 54985), (965, 21994), (1351, 15710), (1571, 13510), (1930, 10997), (2702, 7855), (3142, 6755)]