21815706716

素因数分解:

$2^2\times {\mathrm{197}}^1\times {\mathrm{1381}}^1\times {\mathrm{20047}}^1$

素因数の和:21629

約数の個数: 24

約数和(自身を含む): 38400981696

約数和(自身を除く): 16585274980

約数列:

[1, 2, 4, 197, 394, 788, 1381, 2762, 5524, 20047, 40094, 80188, 272057, 544114, 1088228, 3949259, 7898518, 15797036, 27684907, 55369814, 110739628, 5453926679, 10907853358, 21815706716]

約数ペア:

[(1, 21815706716), (2, 10907853358), (4, 5453926679), (197, 110739628), (394, 55369814), (788, 27684907), (1381, 15797036), (2762, 7898518), (5524, 3949259), (20047, 1088228), (40094, 544114), (80188, 272057)]