19099821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 9930579

約数列:

[1, 3, 13, 23, 39, 69, 107, 199, 299, 321, 597, 897, 1391, 2461, 2587, 4173, 4577, 7383, 7761, 13731, 21293, 31993, 59501, 63879, 95979, 178503, 276809, 489739, 830427, 1469217, 6366607, 19099821]

約数ペア:

[(1, 19099821), (3, 6366607), (13, 1469217), (23, 830427), (39, 489739), (69, 276809), (107, 178503), (199, 95979), (299, 63879), (321, 59501), (597, 31993), (897, 21293), (1391, 13731), (2461, 7761), (2587, 7383), (4173, 4577)]