19918101

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{55793}}^1$

素因数の和:55820

約数の個数: 16

約数和(自身を含む): 32137344

約数和(自身を除く): 12219243

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 55793, 167379, 390551, 948481, 1171653, 2845443, 6639367, 19918101]

約数ペア:

[(1, 19918101), (3, 6639367), (7, 2845443), (17, 1171653), (21, 948481), (51, 390551), (119, 167379), (357, 55793)]