19959005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 27433728

約数和(自身を除く): 7474723

約数列:

[1, 5, 11, 41, 53, 55, 167, 205, 265, 451, 583, 835, 1837, 2173, 2255, 2915, 6847, 8851, 9185, 10865, 23903, 34235, 44255, 75317, 97361, 119515, 362891, 376585, 486805, 1814455, 3991801, 19959005]

約数ペア:

[(1, 19959005), (5, 3991801), (11, 1814455), (41, 486805), (53, 376585), (55, 362891), (167, 119515), (205, 97361), (265, 75317), (451, 44255), (583, 34235), (835, 23903), (1837, 10865), (2173, 9185), (2255, 8851), (2915, 6847)]