20201883

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 30912000

約数和(自身を除く): 10710117

約数列:

[1, 3, 13, 19, 39, 57, 137, 199, 247, 411, 597, 741, 1781, 2587, 2603, 3781, 5343, 7761, 7809, 11343, 27263, 33839, 49153, 81789, 101517, 147459, 354419, 517997, 1063257, 1553991, 6733961, 20201883]

約数ペア:

[(1, 20201883), (3, 6733961), (13, 1553991), (19, 1063257), (39, 517997), (57, 354419), (137, 147459), (199, 101517), (247, 81789), (411, 49153), (597, 33839), (741, 27263), (1781, 11343), (2587, 7809), (2603, 7761), (3781, 5343)]