807908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^2$

素因数の和:239

約数の個数: 18

約数和(自身を含む): 1510866

約数和(自身を除く): 702958

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 3706, 7412, 11881, 23762, 47524, 201977, 403954, 807908]

約数ペア:

[(1, 807908), (2, 403954), (4, 201977), (17, 47524), (34, 23762), (68, 11881), (109, 7412), (218, 3706), (436, 1853)]