21361816

素因数分解:

$2^3\times 7^1\times {\mathrm{381461}}^1$

素因数の和:381474

約数の個数: 16

約数和(自身を含む): 45775440

約数和(自身を除く): 24413624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 381461, 762922, 1525844, 2670227, 3051688, 5340454, 10680908, 21361816]

約数ペア:

[(1, 21361816), (2, 10680908), (4, 5340454), (7, 3051688), (8, 2670227), (14, 1525844), (28, 762922), (56, 381461)]