20913916

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{1069}}^1$

素因数の和:1213

約数の個数: 24

約数和(自身を含む): 37689680

約数和(自身を除く): 16775764

約数列:

[1, 2, 4, 67, 73, 134, 146, 268, 292, 1069, 2138, 4276, 4891, 9782, 19564, 71623, 78037, 143246, 156074, 286492, 312148, 5228479, 10456958, 20913916]

約数ペア:

[(1, 20913916), (2, 10456958), (4, 5228479), (67, 312148), (73, 286492), (134, 156074), (146, 143246), (268, 78037), (292, 71623), (1069, 19564), (2138, 9782), (4276, 4891)]