21551517

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1103}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 33755904

約数和(自身を除く): 12204387

約数列:

[1, 3, 9, 13, 39, 117, 167, 501, 1103, 1503, 2171, 3309, 6513, 9927, 14339, 19539, 43017, 129051, 184201, 552603, 1657809, 2394613, 7183839, 21551517]

約数ペア:

[(1, 21551517), (3, 7183839), (9, 2394613), (13, 1657809), (39, 552603), (117, 184201), (167, 129051), (501, 43017), (1103, 19539), (1503, 14339), (2171, 9927), (3309, 6513)]