21281428

素因数分解:

$2^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{3319}}^1$

素因数の和:3559

約数の個数: 24

約数和(自身を含む): 42761600

約数和(自身を除く): 21480172

約数列:

[1, 2, 4, 7, 14, 28, 229, 458, 916, 1603, 3206, 3319, 6412, 6638, 13276, 23233, 46466, 92932, 760051, 1520102, 3040204, 5320357, 10640714, 21281428]

約数ペア:

[(1, 21281428), (2, 10640714), (4, 5320357), (7, 3040204), (14, 1520102), (28, 760051), (229, 92932), (458, 46466), (916, 23233), (1603, 13276), (3206, 6638), (3319, 6412)]