28643671

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1999}}^1$

素因数の和:2118

約数の個数: 16

約数和(自身を含む): 34560000

約数和(自身を除く): 5916329

約数列:

[1, 7, 23, 89, 161, 623, 1999, 2047, 13993, 14329, 45977, 177911, 321839, 1245377, 4091953, 28643671]

約数ペア:

[(1, 28643671), (7, 4091953), (23, 1245377), (89, 321839), (161, 177911), (623, 45977), (1999, 14329), (2047, 13993)]