21419937

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10303}}^1$

素因数の和:10330

約数の個数: 32

約数和(自身を含む): 39567360

約数和(自身を除く): 18147423

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10303, 30909, 72121, 92727, 113333, 216363, 278181, 339999, 649089, 793331, 1019997, 1947267, 2379993, 3059991, 7139979, 21419937]

約数ペア:

[(1, 21419937), (3, 7139979), (7, 3059991), (9, 2379993), (11, 1947267), (21, 1019997), (27, 793331), (33, 649089), (63, 339999), (77, 278181), (99, 216363), (189, 113333), (231, 92727), (297, 72121), (693, 30909), (2079, 10303)]