19939745

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13249}}^1$

素因数の和:13304

約数の個数: 16

約数和(自身を含む): 27984000

約数和(自身を除く): 8044255

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 13249, 66245, 92743, 463715, 569707, 2848535, 3987949, 19939745]

約数ペア:

[(1, 19939745), (5, 3987949), (7, 2848535), (35, 569707), (43, 463715), (215, 92743), (301, 66245), (1505, 13249)]