21151235

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{16333}}^1$

素因数の和:16382

約数の個数: 16

約数和(自身を含む): 29793216

約数和(自身を除く): 8641981

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 16333, 81665, 114331, 571655, 604321, 3021605, 4230247, 21151235]

約数ペア:

[(1, 21151235), (5, 4230247), (7, 3021605), (35, 604321), (37, 571655), (185, 114331), (259, 81665), (1295, 16333)]