215538603

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{77171}}^1$

素因数の和:77207

約数の個数: 24

約数和(自身を含む): 351904320

約数和(自身を除く): 136365717

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 77171, 231513, 540197, 1466249, 1620591, 3781379, 4398747, 10263743, 11344137, 30791229, 71846201, 215538603]

約数ペア:

[(1, 215538603), (3, 71846201), (7, 30791229), (19, 11344137), (21, 10263743), (49, 4398747), (57, 3781379), (133, 1620591), (147, 1466249), (399, 540197), (931, 231513), (2793, 77171)]