21772053

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{269}}^1$

素因数の和:338

約数の個数: 36

約数和(自身を含む): 34938540

約数和(自身を除く): 13166487

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 269, 391, 529, 807, 1173, 1587, 2421, 3519, 4573, 4761, 6187, 8993, 13719, 18561, 26979, 41157, 55683, 80937, 105179, 142301, 315537, 426903, 946611, 1280709, 2419117, 7257351, 21772053]

約数ペア:

[(1, 21772053), (3, 7257351), (9, 2419117), (17, 1280709), (23, 946611), (51, 426903), (69, 315537), (153, 142301), (207, 105179), (269, 80937), (391, 55683), (529, 41157), (807, 26979), (1173, 18561), (1587, 13719), (2421, 8993), (3519, 6187), (4573, 4761)]