19389965

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4229}}^1$

素因数の和:4372

約数の個数: 16

約数和(自身を含む): 26801280

約数和(自身を除く): 7411315

約数列:

[1, 5, 7, 35, 131, 655, 917, 4229, 4585, 21145, 29603, 148015, 553999, 2769995, 3877993, 19389965]

約数ペア:

[(1, 19389965), (5, 3877993), (7, 2769995), (35, 553999), (131, 148015), (655, 29603), (917, 21145), (4229, 4585)]