20189906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{39901}}^1$

素因数の和:39937

約数の個数: 16

約数和(自身を含む): 34475328

約数和(自身を除く): 14285422

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 39901, 79802, 438911, 877822, 917723, 1835446, 10094953, 20189906]

約数ペア:

[(1, 20189906), (2, 10094953), (11, 1835446), (22, 917723), (23, 877822), (46, 438911), (253, 79802), (506, 39901)]