28305440247

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70940953}}^1$

素因数の和:70940982

約数の個数: 16

約数和(自身を含む): 45402210560

約数和(自身を除く): 17096770313

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70940953, 212822859, 496586671, 1347878107, 1489760013, 4043634321, 9435146749, 28305440247]

約数ペア:

[(1, 28305440247), (3, 9435146749), (7, 4043634321), (19, 1489760013), (21, 1347878107), (57, 496586671), (133, 212822859), (399, 70940953)]