19900804

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{64613}}^1$

素因数の和:64635

約数の個数: 24

約数和(自身を含む): 43420608

約数和(自身を除く): 23519804

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 64613, 129226, 258452, 452291, 710743, 904582, 1421486, 1809164, 2842972, 4975201, 9950402, 19900804]

約数ペア:

[(1, 19900804), (2, 9950402), (4, 4975201), (7, 2842972), (11, 1809164), (14, 1421486), (22, 904582), (28, 710743), (44, 452291), (77, 258452), (154, 129226), (308, 64613)]