19971427

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 23457280

約数和(自身を除く): 3485853

約数列:

[1, 7, 67, 97, 439, 469, 679, 3073, 6499, 29413, 42583, 45493, 205891, 298081, 2853061, 19971427]

約数ペア:

[(1, 19971427), (7, 2853061), (67, 298081), (97, 205891), (439, 45493), (469, 42583), (679, 29413), (3073, 6499)]