19215009

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2087}}^1$

素因数の和:2138

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 12856671

約数列:

[1, 3, 9, 11, 27, 31, 33, 93, 99, 279, 297, 341, 837, 1023, 2087, 3069, 6261, 9207, 18783, 22957, 56349, 64697, 68871, 194091, 206613, 582273, 619839, 711667, 1746819, 2135001, 6405003, 19215009]

約数ペア:

[(1, 19215009), (3, 6405003), (9, 2135001), (11, 1746819), (27, 711667), (31, 619839), (33, 582273), (93, 206613), (99, 194091), (279, 68871), (297, 64697), (341, 56349), (837, 22957), (1023, 18783), (2087, 9207), (3069, 6261)]