16771989

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 25280640

約数和(自身を除く): 8508651

約数列:

[1, 3, 13, 37, 39, 59, 111, 177, 197, 481, 591, 767, 1443, 2183, 2301, 2561, 6549, 7289, 7683, 11623, 21867, 28379, 34869, 85137, 94757, 151099, 284271, 430051, 453297, 1290153, 5590663, 16771989]

約数ペア:

[(1, 16771989), (3, 5590663), (13, 1290153), (37, 453297), (39, 430051), (59, 284271), (111, 151099), (177, 94757), (197, 85137), (481, 34869), (591, 28379), (767, 21867), (1443, 11623), (2183, 7683), (2301, 7289), (2561, 6549)]