16001955

素因数分解:

$3^4\times 5^1\times {\mathrm{39511}}^1$

素因数の和:39528

約数の個数: 20

約数和(自身を含む): 28685712

約数和(自身を除く): 12683757

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 39511, 118533, 197555, 355599, 592665, 1066797, 1777995, 3200391, 5333985, 16001955]

約数ペア:

[(1, 16001955), (3, 5333985), (5, 3200391), (9, 1777995), (15, 1066797), (27, 592665), (45, 355599), (81, 197555), (135, 118533), (405, 39511)]