21380308

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1237}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 38997000

約数和(自身を除く): 17616692

約数列:

[1, 2, 4, 29, 58, 116, 149, 298, 596, 1237, 2474, 4321, 4948, 8642, 17284, 35873, 71746, 143492, 184313, 368626, 737252, 5345077, 10690154, 21380308]

約数ペア:

[(1, 21380308), (2, 10690154), (4, 5345077), (29, 737252), (58, 368626), (116, 184313), (149, 143492), (298, 71746), (596, 35873), (1237, 17284), (2474, 8642), (4321, 4948)]