19164747

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 30316032

約数和(自身を除く): 11151285

約数列:

[1, 3, 7, 21, 53, 67, 159, 201, 257, 371, 469, 771, 1113, 1407, 1799, 3551, 5397, 10653, 13621, 17219, 24857, 40863, 51657, 74571, 95347, 120533, 286041, 361599, 912607, 2737821, 6388249, 19164747]

約数ペア:

[(1, 19164747), (3, 6388249), (7, 2737821), (21, 912607), (53, 361599), (67, 286041), (159, 120533), (201, 95347), (257, 74571), (371, 51657), (469, 40863), (771, 24857), (1113, 17219), (1407, 13621), (1799, 10653), (3551, 5397)]