19013985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{18371}}^1$

素因数の和:18405

約数の個数: 24

約数和(自身を含む): 34392384

約数和(自身を除く): 15378399

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 18371, 55113, 91855, 165339, 275565, 422533, 826695, 1267599, 2112665, 3802797, 6337995, 19013985]

約数ペア:

[(1, 19013985), (3, 6337995), (5, 3802797), (9, 2112665), (15, 1267599), (23, 826695), (45, 422533), (69, 275565), (115, 165339), (207, 91855), (345, 55113), (1035, 18371)]