20471685

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{379}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 35495040

約数和(自身を除く): 15023355

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 277, 379, 831, 1137, 1385, 1895, 3601, 4155, 4927, 5685, 10803, 14781, 18005, 24635, 54015, 73905, 104983, 314949, 524915, 1364779, 1574745, 4094337, 6823895, 20471685]

約数ペア:

[(1, 20471685), (3, 6823895), (5, 4094337), (13, 1574745), (15, 1364779), (39, 524915), (65, 314949), (195, 104983), (277, 73905), (379, 54015), (831, 24635), (1137, 18005), (1385, 14781), (1895, 10803), (3601, 5685), (4155, 4927)]