1821979521

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{14737}}^1$

素因数の和:15006

約数の個数: 32

約数和(自身を含む): 2853276800

約数和(自身を除く): 1031297279

約数列:

[1, 3, 9, 19, 27, 57, 171, 241, 513, 723, 2169, 4579, 6507, 13737, 14737, 41211, 44211, 123633, 132633, 280003, 397899, 840009, 2520027, 3551617, 7560081, 10654851, 31964553, 67480723, 95893659, 202442169, 607326507, 1821979521]

約数ペア:

[(1, 1821979521), (3, 607326507), (9, 202442169), (19, 95893659), (27, 67480723), (57, 31964553), (171, 10654851), (241, 7560081), (513, 3551617), (723, 2520027), (2169, 840009), (4579, 397899), (6507, 280003), (13737, 132633), (14737, 123633), (41211, 44211)]