21212233

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1\times {\mathrm{367}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 25436160

約数和(自身を除く): 4223927

約数列:

[1, 7, 23, 161, 359, 367, 2513, 2569, 8257, 8441, 57799, 59087, 131753, 922271, 3030319, 21212233]

約数ペア:

[(1, 21212233), (7, 3030319), (23, 922271), (161, 131753), (359, 59087), (367, 57799), (2513, 8441), (2569, 8257)]