18905095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 26496000

約数和(自身を除く): 7590905

約数列:

[1, 5, 11, 19, 55, 79, 95, 209, 229, 395, 869, 1045, 1145, 1501, 2519, 4345, 4351, 7505, 12595, 16511, 18091, 21755, 47861, 82555, 90455, 199001, 239305, 343729, 995005, 1718645, 3781019, 18905095]

約数ペア:

[(1, 18905095), (5, 3781019), (11, 1718645), (19, 995005), (55, 343729), (79, 239305), (95, 199001), (209, 90455), (229, 82555), (395, 47861), (869, 21755), (1045, 18091), (1145, 16511), (1501, 12595), (2519, 7505), (4345, 4351)]