19278379

素因数分解:

${\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:270

約数の個数: 16

約数和(自身を含む): 20489760

約数和(自身を除く): 1211381

約数列:

[1, 53, 61, 67, 89, 3233, 3551, 4087, 4717, 5429, 5963, 216611, 287737, 316039, 363743, 19278379]

約数ペア:

[(1, 19278379), (53, 363743), (61, 316039), (67, 287737), (89, 216611), (3233, 5963), (3551, 5429), (4087, 4717)]