21945814

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{1747}}^1$

素因数の和:2331

約数の個数: 16

約数和(自身を含む): 35994816

約数和(自身を除く): 14049002

約数列:

[1, 2, 11, 22, 571, 1142, 1747, 3494, 6281, 12562, 19217, 38434, 997537, 1995074, 10972907, 21945814]

約数ペア:

[(1, 21945814), (2, 10972907), (11, 1995074), (22, 997537), (571, 38434), (1142, 19217), (1747, 12562), (3494, 6281)]