19921682

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:646

約数の個数: 24

約数和(自身を含む): 33094656

約数和(自身を除く): 13172974

約数列:

[1, 2, 11, 22, 121, 191, 242, 382, 431, 862, 2101, 4202, 4741, 9482, 23111, 46222, 52151, 82321, 104302, 164642, 905531, 1811062, 9960841, 19921682]

約数ペア:

[(1, 19921682), (2, 9960841), (11, 1811062), (22, 905531), (121, 164642), (191, 104302), (242, 82321), (382, 52151), (431, 46222), (862, 23111), (2101, 9482), (4202, 4741)]