20967531

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12503}}^1$

素因数の和:12562

約数の個数: 16

約数和(自身を含む): 30809856

約数和(自身を除く): 9842325

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 12503, 37509, 162539, 487617, 537629, 1612887, 6989177, 20967531]

約数ペア:

[(1, 20967531), (3, 6989177), (13, 1612887), (39, 537629), (43, 487617), (129, 162539), (559, 37509), (1677, 12503)]