20070531

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 32291840

約数和(自身を除く): 12221309

約数列:

[1, 3, 9, 13, 27, 39, 117, 211, 271, 351, 633, 813, 1899, 2439, 2743, 3523, 5697, 7317, 8229, 10569, 24687, 31707, 57181, 74061, 95121, 171543, 514629, 743353, 1543887, 2230059, 6690177, 20070531]

約数ペア:

[(1, 20070531), (3, 6690177), (9, 2230059), (13, 1543887), (27, 743353), (39, 514629), (117, 171543), (211, 95121), (271, 74061), (351, 57181), (633, 31707), (813, 24687), (1899, 10569), (2439, 8229), (2743, 7317), (3523, 5697)]