21821591

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1913}}^1$

素因数の和:2002

約数の個数: 16

約数和(自身を含む): 25632288

約数和(自身を除く): 3810697

約数列:

[1, 11, 17, 61, 187, 671, 1037, 1913, 11407, 21043, 32521, 116693, 357731, 1283623, 1983781, 21821591]

約数ペア:

[(1, 21821591), (11, 1983781), (17, 1283623), (61, 357731), (187, 116693), (671, 32521), (1037, 21043), (1913, 11407)]