19945305

素因数分解:

$3^3\times 5^1\times {\mathrm{147743}}^1$

素因数の和:147757

約数の個数: 16

約数和(自身を含む): 35458560

約数和(自身を除く): 15513255

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 147743, 443229, 738715, 1329687, 2216145, 3989061, 6648435, 19945305]

約数ペア:

[(1, 19945305), (3, 6648435), (5, 3989061), (9, 2216145), (15, 1329687), (27, 738715), (45, 443229), (135, 147743)]