1999565547

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{639043}}^1$

素因数の和:639202

約数の個数: 16

約数和(自身を含む): 3067411200

約数和(自身を除く): 1067845653

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 639043, 1917129, 4473301, 13419903, 95217407, 285652221, 666521849, 1999565547]

約数ペア:

[(1, 1999565547), (3, 666521849), (7, 285652221), (21, 95217407), (149, 13419903), (447, 4473301), (1043, 1917129), (3129, 639043)]