21000948052

素因数分解:

$2^2\times 7^1\times {\mathrm{9697}}^1\times {\mathrm{77347}}^1$

素因数の和:87055

約数の個数: 24

約数和(自身を含む): 42006770624

約数和(自身を除く): 21005822572

約数列:

[1, 2, 4, 7, 14, 28, 9697, 19394, 38788, 67879, 77347, 135758, 154694, 271516, 309388, 541429, 1082858, 2165716, 750033859, 1500067718, 3000135436, 5250237013, 10500474026, 21000948052]

約数ペア:

[(1, 21000948052), (2, 10500474026), (4, 5250237013), (7, 3000135436), (14, 1500067718), (28, 750033859), (9697, 2165716), (19394, 1082858), (38788, 541429), (67879, 309388), (77347, 271516), (135758, 154694)]