21063088

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12781}}^1$

素因数の和:12892

約数の個数: 20

約数和(自身を含む): 41209168

約数和(自身を除く): 20146080

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12781, 25562, 51124, 102248, 204496, 1316443, 2632886, 5265772, 10531544, 21063088]

約数ペア:

[(1, 21063088), (2, 10531544), (4, 5265772), (8, 2632886), (16, 1316443), (103, 204496), (206, 102248), (412, 51124), (824, 25562), (1648, 12781)]