20793669

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 32094720

約数和(自身を除く): 11301051

約数列:

[1, 3, 13, 17, 39, 51, 79, 221, 237, 397, 663, 1027, 1191, 1343, 3081, 4029, 5161, 6749, 15483, 17459, 20247, 31363, 52377, 87737, 94089, 263211, 407719, 533171, 1223157, 1599513, 6931223, 20793669]

約数ペア:

[(1, 20793669), (3, 6931223), (13, 1599513), (17, 1223157), (39, 533171), (51, 407719), (79, 263211), (221, 94089), (237, 87737), (397, 52377), (663, 31363), (1027, 20247), (1191, 17459), (1343, 15483), (3081, 6749), (4029, 5161)]