388973985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1364821}}^1$

素因数の和:1364848

約数の個数: 16

約数和(自身を含む): 655114560

約数和(自身を除く): 266140575

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 1364821, 4094463, 6824105, 20472315, 25931599, 77794797, 129657995, 388973985]

約数ペア:

[(1, 388973985), (3, 129657995), (5, 77794797), (15, 25931599), (19, 20472315), (57, 6824105), (95, 4094463), (285, 1364821)]