641350318

素因数分解:

$2^1\times 7^4\times {\mathrm{133559}}^1$

素因数の和:133589

約数の個数: 20

約数和(自身を含む): 1122304680

約数和(自身を除く): 480954362

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 133559, 267118, 934913, 1869826, 6544391, 13088782, 45810737, 91621474, 320675159, 641350318]

約数ペア:

[(1, 641350318), (2, 320675159), (7, 91621474), (14, 45810737), (49, 13088782), (98, 6544391), (343, 1869826), (686, 934913), (2401, 267118), (4802, 133559)]