21898376

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{443}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 42517440

約数和(自身を除く): 20619064

約数列:

[1, 2, 4, 8, 37, 74, 148, 167, 296, 334, 443, 668, 886, 1336, 1772, 3544, 6179, 12358, 16391, 24716, 32782, 49432, 65564, 73981, 131128, 147962, 295924, 591848, 2737297, 5474594, 10949188, 21898376]

約数ペア:

[(1, 21898376), (2, 10949188), (4, 5474594), (8, 2737297), (37, 591848), (74, 295924), (148, 147962), (167, 131128), (296, 73981), (334, 65564), (443, 49432), (668, 32782), (886, 24716), (1336, 16391), (1772, 12358), (3544, 6179)]