31261707

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 56

約数和(自身を含む): 51502160

約数和(自身を除く): 20240453

約数列:

[1, 3, 9, 19, 27, 37, 57, 61, 81, 111, 171, 183, 243, 333, 513, 549, 703, 729, 999, 1159, 1539, 1647, 2109, 2257, 2997, 3477, 4617, 4941, 6327, 6771, 8991, 10431, 13851, 14823, 18981, 20313, 26973, 31293, 42883, 44469, 56943, 60939, 93879, 128649, 170829, 182817, 281637, 385947, 512487, 548451, 844911, 1157841, 1645353, 3473523, 10420569, 31261707]

約数ペア:

[(1, 31261707), (3, 10420569), (9, 3473523), (19, 1645353), (27, 1157841), (37, 844911), (57, 548451), (61, 512487), (81, 385947), (111, 281637), (171, 182817), (183, 170829), (243, 128649), (333, 93879), (513, 60939), (549, 56943), (703, 44469), (729, 42883), (999, 31293), (1159, 26973), (1539, 20313), (1647, 18981), (2109, 14823), (2257, 13851), (2997, 10431), (3477, 8991), (4617, 6771), (4941, 6327)]