19826972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{809}}^1$

素因数の和:1381

約数の個数: 24

約数和(自身を含む): 37966320

約数和(自身を除く): 18139348

約数列:

[1, 2, 4, 11, 22, 44, 557, 809, 1114, 1618, 2228, 3236, 6127, 8899, 12254, 17798, 24508, 35596, 450613, 901226, 1802452, 4956743, 9913486, 19826972]

約数ペア:

[(1, 19826972), (2, 9913486), (4, 4956743), (11, 1802452), (22, 901226), (44, 450613), (557, 35596), (809, 24508), (1114, 17798), (1618, 12254), (2228, 8899), (3236, 6127)]