21076790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1427}}^1$

素因数の和:1652

約数の個数: 32

約数和(自身を含む): 43593984

約数和(自身を除く): 22517194

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1427, 1477, 2110, 2854, 2954, 7135, 7385, 9989, 14270, 14770, 19978, 49945, 99890, 301097, 602194, 1505485, 2107679, 3010970, 4215358, 10538395, 21076790]

約数ペア:

[(1, 21076790), (2, 10538395), (5, 4215358), (7, 3010970), (10, 2107679), (14, 1505485), (35, 602194), (70, 301097), (211, 99890), (422, 49945), (1055, 19978), (1427, 14770), (1477, 14270), (2110, 9989), (2854, 7385), (2954, 7135)]