19729430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{281849}}^1$

素因数の和:281863

約数の個数: 16

約数和(自身を含む): 40586400

約数和(自身を除く): 20856970

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 281849, 563698, 1409245, 1972943, 2818490, 3945886, 9864715, 19729430]

約数ペア:

[(1, 19729430), (2, 9864715), (5, 3945886), (7, 2818490), (10, 1972943), (14, 1409245), (35, 563698), (70, 281849)]