21004497

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3499}}^1$

素因数の和:3557

約数の個数: 24

約数和(自身を含む): 32760000

約数和(自身を除く): 11755503

約数列:

[1, 3, 9, 23, 29, 69, 87, 207, 261, 667, 2001, 3499, 6003, 10497, 31491, 80477, 101471, 241431, 304413, 724293, 913239, 2333833, 7001499, 21004497]

約数ペア:

[(1, 21004497), (3, 7001499), (9, 2333833), (23, 913239), (29, 724293), (69, 304413), (87, 241431), (207, 101471), (261, 80477), (667, 31491), (2001, 10497), (3499, 6003)]