18909979

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1823}}^1$

素因数の和:1898

約数の個数: 16

約数和(自身を含む): 22063104

約数和(自身を除く): 3153125

約数列:

[1, 11, 23, 41, 253, 451, 943, 1823, 10373, 20053, 41929, 74743, 461219, 822173, 1719089, 18909979]

約数ペア:

[(1, 18909979), (11, 1719089), (23, 822173), (41, 461219), (253, 74743), (451, 41929), (943, 20053), (1823, 10373)]