21780332

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45757}}^1$

素因数の和:45785

約数の個数: 24

約数和(自身を含む): 46124064

約数和(自身を除く): 24343732

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45757, 91514, 183028, 320299, 640598, 777869, 1281196, 1555738, 3111476, 5445083, 10890166, 21780332]

約数ペア:

[(1, 21780332), (2, 10890166), (4, 5445083), (7, 3111476), (14, 1555738), (17, 1281196), (28, 777869), (34, 640598), (68, 320299), (119, 183028), (238, 91514), (476, 45757)]