21437163

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:920

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 13641237

約数列:

[1, 3, 9, 11, 27, 33, 89, 99, 267, 297, 801, 811, 979, 2403, 2433, 2937, 7299, 8811, 8921, 21897, 26433, 26763, 72179, 80289, 216537, 240867, 649611, 793969, 1948833, 2381907, 7145721, 21437163]

約数ペア:

[(1, 21437163), (3, 7145721), (9, 2381907), (11, 1948833), (27, 793969), (33, 649611), (89, 240867), (99, 216537), (267, 80289), (297, 72179), (801, 26763), (811, 26433), (979, 21897), (2403, 8921), (2433, 8811), (2937, 7299)]