81740907

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{53113}}^1$

素因数の和:53144

約数の個数: 20

約数和(自身を含む): 128535880

約数和(自身を除く): 46794973

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 53113, 159339, 478017, 1009147, 1434051, 3027441, 4302153, 9082323, 27246969, 81740907]

約数ペア:

[(1, 81740907), (3, 27246969), (9, 9082323), (19, 4302153), (27, 3027441), (57, 1434051), (81, 1009147), (171, 478017), (513, 159339), (1539, 53113)]