19501641

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{3391}}^1$

素因数の和:3474

約数の個数: 20

約数和(自身を含む): 29551104

約数和(自身を除く): 10049463

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 3391, 5751, 10173, 30519, 91557, 240761, 274671, 722283, 2166849, 6500547, 19501641]

約数ペア:

[(1, 19501641), (3, 6500547), (9, 2166849), (27, 722283), (71, 274671), (81, 240761), (213, 91557), (639, 30519), (1917, 10173), (3391, 5751)]