21174778

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13591}}^1$

素因数の和:13653

約数の個数: 16

約数和(自身を含む): 34251840

約数和(自身を除く): 13077062

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13591, 27182, 258229, 516458, 557231, 1114462, 10587389, 21174778]

約数ペア:

[(1, 21174778), (2, 10587389), (19, 1114462), (38, 557231), (41, 516458), (82, 258229), (779, 27182), (1558, 13591)]