1999686521

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{10903}}^1$

素因数の和:11133

約数の個数: 24

約数和(自身を含む): 2461250880

約数和(自身を除く): 461564359

約数列:

[1, 7, 19, 49, 133, 197, 931, 1379, 3743, 9653, 10903, 26201, 76321, 183407, 207157, 534247, 1450099, 2147891, 10150693, 15035237, 40809929, 105246659, 285669503, 1999686521]

約数ペア:

[(1, 1999686521), (7, 285669503), (19, 105246659), (49, 40809929), (133, 15035237), (197, 10150693), (931, 2147891), (1379, 1450099), (3743, 534247), (9653, 207157), (10903, 183407), (26201, 76321)]