90420439137

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{253278541}}^1$

素因数の和:253278568

約数の個数: 16

約数和(自身を含む): 145888440192

約数和(自身を除く): 55468001055

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 253278541, 759835623, 1772949787, 4305735197, 5318849361, 12917205591, 30140146379, 90420439137]

約数ペア:

[(1, 90420439137), (3, 30140146379), (7, 12917205591), (17, 5318849361), (21, 4305735197), (51, 1772949787), (119, 759835623), (357, 253278541)]