20642615

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25643}}^1$

素因数の和:25678

約数の個数: 16

約数和(自身を含む): 29541888

約数和(自身を除く): 8899273

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25643, 128215, 179501, 589789, 897505, 2948945, 4128523, 20642615]

約数ペア:

[(1, 20642615), (5, 4128523), (7, 2948945), (23, 897505), (35, 589789), (115, 179501), (161, 128215), (805, 25643)]