20851636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{1721}}^1$

素因数の和:1971

約数の個数: 24

約数和(自身を含む): 39488904

約数和(自身を除く): 18637268

約数列:

[1, 2, 4, 13, 26, 52, 233, 466, 932, 1721, 3029, 3442, 6058, 6884, 12116, 22373, 44746, 89492, 400993, 801986, 1603972, 5212909, 10425818, 20851636]

約数ペア:

[(1, 20851636), (2, 10425818), (4, 5212909), (13, 1603972), (26, 801986), (52, 400993), (233, 89492), (466, 44746), (932, 22373), (1721, 12116), (3029, 6884), (3442, 6058)]