20798900649

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{977}}^1\times {\mathrm{76303}}^1$

素因数の和:77317

約数の個数: 24

約数和(自身を含む): 31044129792

約数和(自身を除く): 10245229143

約数列:

[1, 3, 9, 31, 93, 279, 977, 2931, 8793, 30287, 76303, 90861, 228909, 272583, 686727, 2365393, 7096179, 21288537, 74548031, 223644093, 670932279, 2310988961, 6932966883, 20798900649]

約数ペア:

[(1, 20798900649), (3, 6932966883), (9, 2310988961), (31, 670932279), (93, 223644093), (279, 74548031), (977, 21288537), (2931, 7096179), (8793, 2365393), (30287, 686727), (76303, 272583), (90861, 228909)]