21804003

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1187}}^1$

素因数の和:1363

約数の個数: 24

約数和(自身を含む): 34162128

約数和(自身を除く): 12358125

約数列:

[1, 3, 9, 13, 39, 117, 157, 471, 1187, 1413, 2041, 3561, 6123, 10683, 15431, 18369, 46293, 138879, 186359, 559077, 1677231, 2422667, 7268001, 21804003]

約数ペア:

[(1, 21804003), (3, 7268001), (9, 2422667), (13, 1677231), (39, 559077), (117, 186359), (157, 138879), (471, 46293), (1187, 18369), (1413, 15431), (2041, 10683), (3561, 6123)]