21188937

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3163}}^1$

素因数の和:3213

約数の個数: 32

約数和(自身を含む): 36449280

約数和(自身を除く): 15260343

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 3163, 6699, 9489, 22141, 34793, 66423, 91727, 104379, 243551, 275181, 642089, 730653, 1008997, 1926267, 3026991, 7062979, 21188937]

約数ペア:

[(1, 21188937), (3, 7062979), (7, 3026991), (11, 1926267), (21, 1008997), (29, 730653), (33, 642089), (77, 275181), (87, 243551), (203, 104379), (231, 91727), (319, 66423), (609, 34793), (957, 22141), (2233, 9489), (3163, 6699)]