20619431

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1439}}^1$

素因数の和:1558

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 4263769

約数列:

[1, 7, 23, 89, 161, 623, 1439, 2047, 10073, 14329, 33097, 128071, 231679, 896497, 2945633, 20619431]

約数ペア:

[(1, 20619431), (7, 2945633), (23, 896497), (89, 231679), (161, 128071), (623, 33097), (1439, 14329), (2047, 10073)]