20193219

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13121}}^1$

素因数の和:13152

約数の個数: 20

約数和(自身を含む): 31755240

約数和(自身を除く): 11562021

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13121, 39363, 118089, 249299, 354267, 747897, 1062801, 2243691, 6731073, 20193219]

約数ペア:

[(1, 20193219), (3, 6731073), (9, 2243691), (19, 1062801), (27, 747897), (57, 354267), (81, 249299), (171, 118089), (513, 39363), (1539, 13121)]