20534215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18583}}^1$

素因数の和:18618

約数の個数: 16

約数和(自身を含む): 28099008

約数和(自身を除く): 7564793

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18583, 92915, 241579, 315911, 1207895, 1579555, 4106843, 20534215]

約数ペア:

[(1, 20534215), (5, 4106843), (13, 1579555), (17, 1207895), (65, 315911), (85, 241579), (221, 92915), (1105, 18583)]