638978031

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{7213}}^1$

素因数の和:7432

約数の個数: 32

約数和(自身を含む): 1007651520

約数和(自身を除く): 368673489

約数列:

[1, 3, 9, 17, 27, 51, 153, 193, 459, 579, 1737, 3281, 5211, 7213, 9843, 21639, 29529, 64917, 88587, 122621, 194751, 367863, 1103589, 1392109, 3310767, 4176327, 12528981, 23665853, 37586943, 70997559, 212992677, 638978031]

約数ペア:

[(1, 638978031), (3, 212992677), (9, 70997559), (17, 37586943), (27, 23665853), (51, 12528981), (153, 4176327), (193, 3310767), (459, 1392109), (579, 1103589), (1737, 367863), (3281, 194751), (5211, 122621), (7213, 88587), (9843, 64917), (21639, 29529)]