21186484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2521}}^1$

素因数の和:2727

約数の個数: 24

約数和(自身を含む): 40674816

約数和(自身を除く): 19488332

約数列:

[1, 2, 4, 11, 22, 44, 191, 382, 764, 2101, 2521, 4202, 5042, 8404, 10084, 27731, 55462, 110924, 481511, 963022, 1926044, 5296621, 10593242, 21186484]

約数ペア:

[(1, 21186484), (2, 10593242), (4, 5296621), (11, 1926044), (22, 963022), (44, 481511), (191, 110924), (382, 55462), (764, 27731), (2101, 10084), (2521, 8404), (4202, 5042)]