1971221139

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{311557}}^1$

素因数の和:311619

約数の個数: 24

約数和(自身を含む): 3078193040

約数和(自身を除く): 1106971901

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 6327, 311557, 934671, 2804013, 5919583, 11527609, 17758749, 34582827, 53276247, 103748481, 219024571, 657073713, 1971221139]

約数ペア:

[(1, 1971221139), (3, 657073713), (9, 219024571), (19, 103748481), (37, 53276247), (57, 34582827), (111, 17758749), (171, 11527609), (333, 5919583), (703, 2804013), (2109, 934671), (6327, 311557)]