21071710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191561}}^1$

素因数の和:191579

約数の個数: 16

約数和(自身を含む): 41377392

約数和(自身を除く): 20305682

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191561, 383122, 957805, 1915610, 2107171, 4214342, 10535855, 21071710]

約数ペア:

[(1, 21071710), (2, 10535855), (5, 4214342), (10, 2107171), (11, 1915610), (22, 957805), (55, 383122), (110, 191561)]