21967517

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1031}}^1$

素因数の和:1204

約数の個数: 16

約数和(自身を含む): 26006400

約数和(自身を除く): 4038883

約数列:

[1, 11, 13, 143, 149, 1031, 1639, 1937, 11341, 13403, 21307, 147433, 153619, 1689809, 1997047, 21967517]

約数ペア:

[(1, 21967517), (11, 1997047), (13, 1689809), (143, 153619), (149, 147433), (1031, 21307), (1639, 13403), (1937, 11341)]