19884189

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 29804544

約数和(自身を除く): 9920355

約数列:

[1, 3, 13, 39, 43, 71, 129, 167, 213, 501, 559, 923, 1677, 2171, 2769, 3053, 6513, 7181, 9159, 11857, 21543, 35571, 39689, 93353, 119067, 154141, 280059, 462423, 509851, 1529553, 6628063, 19884189]

約数ペア:

[(1, 19884189), (3, 6628063), (13, 1529553), (39, 509851), (43, 462423), (71, 280059), (129, 154141), (167, 119067), (213, 93353), (501, 39689), (559, 35571), (923, 21543), (1677, 11857), (2171, 9159), (2769, 7181), (3053, 6513)]