18491135

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 24419520

約数和(自身を除く): 5928385

約数列:

[1, 5, 13, 65, 79, 169, 277, 395, 845, 1027, 1385, 3601, 5135, 13351, 18005, 21883, 46813, 66755, 109415, 234065, 284479, 1422395, 3698227, 18491135]

約数ペア:

[(1, 18491135), (5, 3698227), (13, 1422395), (65, 284479), (79, 234065), (169, 109415), (277, 66755), (395, 46813), (845, 21883), (1027, 18005), (1385, 13351), (3601, 5135)]