688311

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:112

約数の個数: 32

約数和(自身を含む): 1149120

約数和(自身を除く): 460809

約数列:

[1, 3, 9, 13, 27, 37, 39, 53, 111, 117, 159, 333, 351, 477, 481, 689, 999, 1431, 1443, 1961, 2067, 4329, 5883, 6201, 12987, 17649, 18603, 25493, 52947, 76479, 229437, 688311]

約数ペア:

[(1, 688311), (3, 229437), (9, 76479), (13, 52947), (27, 25493), (37, 18603), (39, 17649), (53, 12987), (111, 6201), (117, 5883), (159, 4329), (333, 2067), (351, 1961), (477, 1443), (481, 1431), (689, 999)]