21155176

素因数分解:

$2^3\times 7^1\times {\mathrm{377771}}^1$

素因数の和:377784

約数の個数: 16

約数和(自身を含む): 45332640

約数和(自身を除く): 24177464

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 377771, 755542, 1511084, 2644397, 3022168, 5288794, 10577588, 21155176]

約数ペア:

[(1, 21155176), (2, 10577588), (4, 5288794), (7, 3022168), (8, 2644397), (14, 1511084), (28, 755542), (56, 377771)]