201991257

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{55691}}^1$

素因数の和:55741

約数の個数: 24

約数和(自身を含む): 324350208

約数和(自身を除く): 122358951

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 55691, 167073, 501219, 723983, 1726421, 2171949, 5179263, 6515847, 15537789, 22443473, 67330419, 201991257]

約数ペア:

[(1, 201991257), (3, 67330419), (9, 22443473), (13, 15537789), (31, 6515847), (39, 5179263), (93, 2171949), (117, 1726421), (279, 723983), (403, 501219), (1209, 167073), (3627, 55691)]