20019801

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{967}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 27382784

約数和(自身を除く): 7362983

約数列:

[1, 3, 67, 103, 201, 309, 967, 2901, 6901, 20703, 64789, 99601, 194367, 298803, 6673267, 20019801]

約数ペア:

[(1, 20019801), (3, 6673267), (67, 298803), (103, 194367), (201, 99601), (309, 64789), (967, 20703), (2901, 6901)]