21163317

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59281}}^1$

素因数の和:59308

約数の個数: 16

約数和(自身を含む): 34146432

約数和(自身を除く): 12983115

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59281, 177843, 414967, 1007777, 1244901, 3023331, 7054439, 21163317]

約数ペア:

[(1, 21163317), (3, 7054439), (7, 3023331), (17, 1244901), (21, 1007777), (51, 414967), (119, 177843), (357, 59281)]